Information about #2B3F4B color

#2B3F4B color image

Basic facts about this digital color

#2B3F4B falls into the Azure Color Family — Mild Saturation, Dark brightness. The mix behind it: rgb(43, 63, 75) — 16.9% red, 24.7% green, 29.4% blue; the print equivalent is CMYK 13 / 5 / 0 / 71. Curious how these numbers work? Read our RGB color codes guide.

A moderately toned steel-blue azure, #2B3F4B stays on the darker end of the scale. Expect to see shades like this in moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is almost identical to Nile Blue (#253F4E). Slightly further away sit Japanese Indigo (#264348) and Tarawera (#253C48).

In RGB terms — rgb(43, 63, 75) — the blue channel does the heavy lifting here. On this background, white text reaches a 11.0:1 contrast ratio (passing WCAG AAA); black stays at 1.9:1. For print, note the heavy black component (K:71) — ink coverage matters with tones this deep. Out of 16,777,216 possible colors, #2B3F4B is still unnamed — it can be claimed and named in The Official Register of Color Names.

#2B3F4B color variations

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

#2B3F4B 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

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

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

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

Tetradic

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

Tetradic color scheme

Square

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

Square color scheme

Nearest named colors to #2B3F4B

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

Nile Blue color link
Nile Blue

#253F4E

Tarawera color link
Tarawera

#253C48

Gotham color link
Gotham

#303B44

Big Stone color link
Big Stone

#334046

Madison color link
Madison

#2D3C54

Warrior color link
Warrior

#2D3B42

Ares blue color link
Ares blue

#2D4255

Cloud Burst color link
Cloud Burst

#353E4F

Bunting color link
Bunting

#2B3449

Vintage Navy color link
Vintage Navy

#2A344D

Conversions between color systems and etc.

  • HEX#2B3F4B
  • RGB43, 63, 75
  • CMYK13, 5, 0, 71
  • CSSrgb(43, 63, 75)
  • HSL203°, 27%, 23%
  • HSL Precise202.5°, 27.119%, 23.137%
  • HSV203°, 43%, 29%
  • HSB203°, 43%, 29%
  • Normalized R (0.0–1.0)0.169
  • Normalized G (0.0–1.0)0.247
  • Normalized B (0.0–1.0)0.294
  • GLSLvec3(0.169, 0.247, 0.294)
  • GLSL with alphavec4(0.169, 0.247, 0.294, 1.000)
  • HLSL / Metalfloat3(0.169, 0.247, 0.294)
  • Percentage of Red in RGB16.9%
  • Percentage of Green in RGB24.7%
  • Percentage of Blue in RGB29.4%
  • Color FamilyAzure
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID2B3F4B
  • DECIMAL ID2834251
  • Name LengthThis color has no name
  • Seen by search & AI crawlers12 times
  • Counting from2025-01-01