Information about #21307C color

#21307C color image

Basic facts about this digital color

In the Register's classification, #21307C belongs to the Blue Color Family, featuring Moderate Saturation and Neutral brightness. The mix behind it: rgb(33, 48, 124) — 12.9% red, 18.8% green, 48.6% blue; the print equivalent is CMYK 36 / 30 / 0 / 51. New to color codes? See our guide to RGB color codes.

The color #21307C reads as a clearly saturated deep-sea blue and occupies the middle of the lightness scale. Designers typically reach for tones like this for versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is just a few steps away from Lapis Blue (#15317E). Slightly further away sit Astronaut (#283A77) and Filmpro Digital Blue (#2D2480).

In RGB terms — rgb(33, 48, 124) — the blue channel does the heavy lifting here. Accessibility-wise, white text works best on #21307C: 11.8:1 contrast (passing WCAG AAA) versus 1.8:1 for black. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#21307C color variations

View this color variations of tints, shades, tones and hues.

#21307C color tints

Tints look brighter, pastel, and less intense.
#21307C

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#2F46B4

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#586CD2

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#8F9DE1

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#C7CEF0

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White

#FFFFFF

#21307C color shades

Shades look darker, richer, and more solid.
#21307C

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#1A2663

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#131D4A

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#0D1331

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#060918

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Black

#000000

#21307C color tones

Tones looks more sophisticated and complex than base colors.
#21307C

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#2F3D81

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#404B84

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#535B85

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#686C83

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Grey

#808080

#21307C color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#7C2179

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#5B217C

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#36217C

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#21307C

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#21557C

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#21797C

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#217C5B

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#21307C color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes
#21307C
#21307C

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#7D6E21
#7D6E21

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Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme
#21307C
#21307C

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#5E7D21
#5E7D21

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#7D4021
#7D4021

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Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme
#40217D
#40217D

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#21307C
#21307C

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#215E7D
#215E7D

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Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme
#21307C
#21307C

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#7D2130
#7D2130

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#307D21
#307D21

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Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme
#21307C
#21307C

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#6E217D
#6E217D

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#7D6E21
#7D6E21

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#307D21
#307D21

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Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme
#21307C
#21307C

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#7D215E
#7D215E

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#7D6E21
#7D6E21

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#217D40
#217D40

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Nearest named colors to #21307C

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Lapis Blue color link
Lapis Blue

#15317E

Astronaut color link
Astronaut

#283A77

Filmpro Digital Blue color link
Filmpro Digital Blue

#2D2480

Cosmic Cobalt color link
Cosmic Cobalt

#2E2D88

Submerge color link
Submerge

#113775

Picotee Blue color link
Picotee Blue

#2E2787

Blue Whale color link
Blue Whale

#342D7E

Coleman Blue color link
Coleman Blue

#2B358C

Luxury Blue color link
Luxury Blue

#1F2B8F

Wet N Wild color link
Wet N Wild

#254375

Believe color link
Believe

#352F77

Confidante color link
Confidante

#233167

#21307C color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

#21307C color image #21307C color ORCN HD wallpaper 3840x2160 (Desktop)
#21307C color image #21307C color ORCN HD wallpaper 1170x2532 (Mobile)
#21307C color image #21307C color solid HD wallpaper 3840x2160 (Desktop)
#21307C color image #21307C color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#21307C
  • RGB33, 48, 124
  • CMYK36, 30, 0, 51
  • CSSrgb(33, 48, 124)
  • HSL230°, 58%, 31%
  • HSL Precise230.11°, 57.962%, 30.784%
  • HSV230°, 73%, 49%
  • HSB230°, 73%, 49%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.188
  • Normalized B (0.0–1.0)0.486
  • GLSLvec3(0.129, 0.188, 0.486)
  • GLSL with alphavec4(0.129, 0.188, 0.486, 1.000)
  • HLSL / Metalfloat3(0.129, 0.188, 0.486)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB18.8%
  • Percentage of Blue in RGB48.6%
  • Color FamilyBlue
  • Saturation FamilyModerate Saturation
  • Lightness FamilyNeutral
  • HEX ID21307C
  • DECIMAL ID2175100
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01

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ORCN is an independent private organisation that maintains a public register — not a governmental institution or an international standards organisation — in which a name is linked to a specific digital colour code. Registration gives the registrant the exclusive right, within the ORCN register, to have that name recorded against that colour code.

Important: a digital colour itself belongs to no one in law. That right exists only within the ORCN register: registration creates no ownership, trademark, copyright or design rights anywhere. Legal exclusivity outside the register, where it is available at all, arises separately under applicable trademark law and is generally limited to particular goods, services and jurisdictions.