Information about #21687B color

#21687B color image

Basic facts about this digital color

The digital color #21687B is classified in the Register under the Cyan Color Family, with Moderate Saturation and Neutral brightness. In numbers: rgb(33, 104, 123) (12.9% red, 40.8% green, 48.2% blue), or CMYK 35 / 7 / 0 / 52 for print. New to color codes? See our guide to RGB color codes.

The color #21687B reads as a pleasantly vivid aqua cyan and occupies the middle of the lightness scale. Designers typically reach for tones like this for balanced palettes where no single element should shout. In The Official Register of Color Names it is practically indistinguishable from Light Blue Flower (#1D697C). Slightly further away sit Dauntless (#166F7F) and Orient (#255B77).

The recipe behind #21687B is rgb(33, 104, 123), with blue as the dominant ingredient. On this background, white text reaches a 6.3:1 contrast ratio (passing WCAG AA); black stays at 3.3:1. #21687B has no official name yet. If this shade means something to you, you can be the one to name it.

#21687B color variations

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

#21687B color tints

Tints look brighter, pastel, and less intense.
#21687B

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#2F97B4

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#58B8D2

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#8FCFE1

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#C7E7F0

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White

#FFFFFF

#21687B color shades

Shades look darker, richer, and more solid.
#21687B

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#1A5463

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#133F4A

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#0D2A31

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#061518

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Black

#000000

#21687B color tones

Tones looks more sophisticated and complex than base colors.
#21687B

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#2F7081

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#407584

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#537A85

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#687D83

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Grey

#808080

#21687B color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#47217C

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#22217C

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#21447C

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#21687B

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#217C6C

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#217C47

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#217C22

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#21687B 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
#21687B
#21687B

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#7D3521
#7D3521

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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
#21687B
#21687B

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#7D6321
#7D6321

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#7D213B
#7D213B

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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
#213B7D
#213B7D

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#21687B
#21687B

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#217D63
#217D63

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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
#21687B
#21687B

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#7D2169
#7D2169

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#697D21
#697D21

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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
#21687B
#21687B

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#35217D
#35217D

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#7D3521
#7D3521

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#697D21
#697D21

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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
#21687B
#21687B

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#63217D
#63217D

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#7D3521
#7D3521

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#3B7D21
#3B7D21

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Nearest named colors to #21687B

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

Light Blue Flower color link
Light Blue Flower

#1D697C

Dauntless color link
Dauntless

#166F7F

Orient color link
Orient

#255B77

Bahama Blue color link
Bahama Blue

#25597F

Humbec Dark Teal color link
Humbec Dark Teal

#265B71

Blue Sapphire color link
Blue Sapphire

#126180

Muse color link
Muse

#2E696D

Atoll color link
Atoll

#2B797A

Spray Drift color link
Spray Drift

#2D5877

Venice Blue color link
Venice Blue

#2C5778

Optimist color link
Optimist

#2B688D

Yarra color link
Yarra

#20608E

#21687B color backgrounds & wallpapers

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

#21687B color image #21687B color ORCN HD wallpaper 3840x2160 (Desktop)
#21687B color image #21687B color ORCN HD wallpaper 1170x2532 (Mobile)
#21687B color image #21687B color solid HD wallpaper 3840x2160 (Desktop)
#21687B color image #21687B color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#21687B
  • RGB33, 104, 123
  • CMYK35, 7, 0, 52
  • CSSrgb(33, 104, 123)
  • HSL193°, 58%, 31%
  • HSL Precise192.667°, 57.692%, 30.588%
  • HSV193°, 73%, 48%
  • HSB193°, 73%, 48%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.408
  • Normalized B (0.0–1.0)0.482
  • GLSLvec3(0.129, 0.408, 0.482)
  • GLSL with alphavec4(0.129, 0.408, 0.482, 1.000)
  • HLSL / Metalfloat3(0.129, 0.408, 0.482)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB40.8%
  • Percentage of Blue in RGB48.2%
  • Color FamilyCyan
  • Saturation FamilyModerate Saturation
  • Lightness FamilyNeutral
  • HEX ID21687B
  • DECIMAL ID2189435
  • Name LengthThis color has no name
  • Seen by search & AI crawlers8 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.