Information about #1B1B51 color

#1B1B51 color image

Basic facts about this digital color

In the Register's classification, #1B1B51 belongs to the Blue Color Family, featuring Moderate Saturation and Dark brightness. The mix behind it: rgb(27, 27, 81) — 10.6% red, 10.6% green, 31.8% blue; the print equivalent is CMYK 21 / 21 / 0 / 68. Curious how these numbers work? Read our RGB color codes guide.

The color #1B1B51 reads as a clearly saturated classic blue and leans clearly toward the dark side. Expect to see shades like this in night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is almost identical to OSS Blue (#1B2450). Its next-closest registered neighbors are Tottenham Navy (#132257) and Navy Blue Bellflower (#191F45).

The recipe behind #1B1B51 is rgb(27, 27, 81), with blue as the dominant ingredient. If you plan to put text on a #1B1B51 background, choose white — the contrast ratio is 15.9:1 (passing WCAG AAA), while black manages only 1.3:1. On paper it relies strongly on black ink (K:68), so proof dark layouts before a large print run. No one has named #1B1B51 so far. Register a name for it and it becomes a permanent record.

#1B1B51 color variations

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

#1B1B51 color tints

Tints look brighter, pastel, and less intense.
#1B1B51

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#2E2E8C

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#4949C2

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#8686D6

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#C2C2EA

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White

#FFFFFF

#1B1B51 color shades

Shades look darker, richer, and more solid.
#1B1B51

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#151540

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#101030

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#0A0A20

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#050510

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Black

#000000

#1B1B51 color tones

Tones looks more sophisticated and complex than base colors.
#1B1B51

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#29295F

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#3A3A6C

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#4E4E75

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#65657B

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Grey

#808080

#1B1B51 color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#501A45

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#451A50

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#301A50

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#1B1B51

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#1A3050

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#1A4550

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#1A5045

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#1B1B51 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
#1B1B51
#1B1B51

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#50501B
#50501B

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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
#1B1B51
#1B1B51

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#36501B
#36501B

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#50361B
#50361B

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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
#361B50
#361B50

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#1B1B51
#1B1B51

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#1B3650
#1B3650

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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
#1B1B51
#1B1B51

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#501B1B
#501B1B

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#1B501B
#1B501B

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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
#1B1B51
#1B1B51

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#501B50
#501B50

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#50501B
#50501B

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#1B501B
#1B501B

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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
#1B1B51
#1B1B51

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#501B36
#501B36

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#50501B
#50501B

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#1B5036
#1B5036

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Nearest named colors to #1B1B51

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

OSS Blue color link
OSS Blue

#1B2450

Tottenham Navy color link
Tottenham Navy

#132257

Navy Blue Bellflower color link
Navy Blue Bellflower

#191F45

Space Cadet color link
Space Cadet

#1D2951

Blue Zodiac color link
Blue Zodiac

#13264D

Jenniebear Blue color link
Jenniebear Blue

#111154

Braves Navy color link
Braves Navy

#13274F

Dark Blue Lapis Lazuli color link
Dark Blue Lapis Lazuli

#1B294B

Surfs Up color link
Surfs Up

#1F2142

Redemption Blue color link
Redemption Blue

#232545

Paua color link
Paua

#2A2551

Blast Off color link
Blast Off

#262857

#1B1B51 color backgrounds & wallpapers

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

#1B1B51 color image #1B1B51 color ORCN HD wallpaper 3840x2160 (Desktop)
#1B1B51 color image #1B1B51 color ORCN HD wallpaper 1170x2532 (Mobile)
#1B1B51 color image #1B1B51 color solid HD wallpaper 3840x2160 (Desktop)
#1B1B51 color image #1B1B51 color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#1B1B51
  • RGB27, 27, 81
  • CMYK21, 21, 0, 68
  • CSSrgb(27, 27, 81)
  • HSL240°, 50%, 21%
  • HSL Precise240°, 50%, 21.176%
  • HSV240°, 67%, 32%
  • HSB240°, 67%, 32%
  • Normalized R (0.0–1.0)0.106
  • Normalized G (0.0–1.0)0.106
  • Normalized B (0.0–1.0)0.318
  • GLSLvec3(0.106, 0.106, 0.318)
  • GLSL with alphavec4(0.106, 0.106, 0.318, 1.000)
  • HLSL / Metalfloat3(0.106, 0.106, 0.318)
  • Percentage of Red in RGB10.6%
  • Percentage of Green in RGB10.6%
  • Percentage of Blue in RGB31.8%
  • Color Family (Hue)Blue
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID1B1B51
  • DECIMAL ID1776465
  • Name LengthThis color has no name
  • This page visited6 times
  • Counting from2025-01-01

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