Information about #2B3973 color

#2B3973 color image

Basic facts about this digital color

The digital color #2B3973 is classified in the Register under the Blue Color Family, with Moderate Saturation and Neutral brightness. Its exact recipe is rgb(43, 57, 115) — 16.9% red, 22.4% green, 45.1% blue — and for print it converts to CMYK 28 / 23 / 0 / 55. Curious how these numbers work? Read our RGB color codes guide.

A confidently colored blue, #2B3973 sits comfortably between light and dark. Expect to see shades like this in understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is a hair away from Astronaut (#283A77). Nearby in the Register you will also find Sea World (#323F75) and Filmpro Ultramarine Blue (#2C3E6B).

Technically, the mix leans on its blue channel (rgb(43, 57, 115)), which gives #2B3973 its character. If you plan to put text on a #2B3973 background, choose white — the contrast ratio is 10.8:1 (passing WCAG AAA), while black manages only 1.9:1. #2B3973 has no official name yet. If this shade means something to you, you can be the one to name it.

#2B3973 color variations

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

#2B3973 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 #2B3973

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

Astronaut color link
Astronaut

#283A77

Sea World color link
Sea World

#323F75

Torea Bay color link
Torea Bay

#353D75

Ford Blue color link
Ford Blue

#2C3968

Wet N Wild color link
Wet N Wild

#254375

Topsy Turvy color link
Topsy Turvy

#313669

Capri color link
Capri

#30436A

Believe color link
Believe

#352F77

Wow color link
Wow

#343467

Deep Koamaru color link
Deep Koamaru

#333366

Confidante color link
Confidante

#233167

Conversions between color systems and etc.

  • HEX#2B3973
  • RGB43, 57, 115
  • CMYK28, 23, 0, 55
  • CSSrgb(43, 57, 115)
  • HSL228°, 46%, 31%
  • HSL Precise228.333°, 45.57%, 30.98%
  • HSV228°, 63%, 45%
  • HSB228°, 63%, 45%
  • Normalized R (0.0–1.0)0.169
  • Normalized G (0.0–1.0)0.224
  • Normalized B (0.0–1.0)0.451
  • GLSLvec3(0.169, 0.224, 0.451)
  • GLSL with alphavec4(0.169, 0.224, 0.451, 1.000)
  • HLSL / Metalfloat3(0.169, 0.224, 0.451)
  • Percentage of Red in RGB16.9%
  • Percentage of Green in RGB22.4%
  • Percentage of Blue in RGB45.1%
  • Color FamilyBlue
  • Saturation FamilyModerate Saturation
  • Lightness FamilyNeutral
  • HEX ID2B3973
  • DECIMAL ID2832755
  • Name LengthThis color has no name
  • Seen by search & AI crawlers8 times
  • Counting from2025-01-01