Information about #1B3DAB color

#1B3DAB color image

Basic facts about this digital color

The digital color #1B3DAB is classified in the Register under the Blue Color Family, with High Saturation and Neutral brightness. In numbers: rgb(27, 61, 171) (10.6% red, 23.9% green, 67.1% blue), or CMYK 56 / 43 / 0 / 33 for print. Curious how these numbers work? Read our RGB color codes guide.

#1B3DAB is a strongly colored classic blue that occupies the middle of the lightness scale. It is a natural fit for logos, highlights and anything that needs to be noticed first. In The Official Register of Color Names it is just a few steps away from Denim Blue (#2243B6). Slightly further away sit Egyptian Blue (#1034A6) and Persian Blue (#1C39BB).

Technically, the mix leans on its blue channel (rgb(27, 61, 171)), which gives #1B3DAB its character. On this background, white text reaches a 9.1:1 contrast ratio (passing WCAG AAA); black stays at 2.3:1. Out of 16,777,216 possible colors, #1B3DAB is still unnamed — it can be claimed and named in The Official Register of Color Names.

#1B3DAB color variations

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

#1B3DAB 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 #1B3DAB

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

Conversions between color systems and etc.

  • HEX#1B3DAB
  • RGB27, 61, 171
  • CMYK56, 43, 0, 33
  • CSSrgb(27, 61, 171)
  • HSL226°, 73%, 39%
  • HSL Precise225.833°, 72.727%, 38.824%
  • HSV226°, 84%, 67%
  • HSB226°, 84%, 67%
  • Normalized R (0.0–1.0)0.106
  • Normalized G (0.0–1.0)0.239
  • Normalized B (0.0–1.0)0.671
  • GLSLvec3(0.106, 0.239, 0.671)
  • GLSL with alphavec4(0.106, 0.239, 0.671, 1.000)
  • HLSL / Metalfloat3(0.106, 0.239, 0.671)
  • Percentage of Red in RGB10.6%
  • Percentage of Green in RGB23.9%
  • Percentage of Blue in RGB67.1%
  • Color FamilyBlue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX ID1B3DAB
  • DECIMAL ID1785259
  • Name LengthThis color has no name
  • Seen by search & AI crawlers8 times
  • Counting from2025-01-01