Information about #1B3C4B color

#1B3C4B color image

Basic facts about this digital color

In the Register's classification, #1B3C4B belongs to the Azure Color Family, featuring Moderate Saturation and Dark brightness. In numbers: rgb(27, 60, 75) (10.6% red, 23.5% green, 29.4% blue), or CMYK 19 / 6 / 0 / 71 for print. Curious how these numbers work? Read our RGB color codes guide.

#1B3C4B presents itself as a clearly saturated steel-blue azure — one that leans clearly toward the dark side. It is a natural fit for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is almost identical to Dark Blue Grey (#1F3B4D). Its next-closest registered neighbors are Tarawera (#253C48) and Barometer (#11394C).

The recipe behind #1B3C4B is rgb(27, 60, 75), with blue as the dominant ingredient. Accessibility-wise, white text works best on #1B3C4B: 11.7:1 contrast (passing WCAG AAA) versus 1.8:1 for black. For print, note the heavy black component (K:71) — ink coverage matters with tones this deep. #1B3C4B has no official name yet. If this shade means something to you, you can be the one to name it.

#1B3C4B color variations

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

#1B3C4B 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 #1B3C4B

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

Tarawera color link
Tarawera

#253C48

Barometer color link
Barometer

#11394C

Nile Blue color link
Nile Blue

#253F4E

Tiber color link
Tiber

#184343

Tiki Tour color link
Tiki Tour

#234040

Regal Blue color link
Regal Blue

#203F58

Coast color link
Coast

#243442

Billabong color link
Billabong

#173141

Nordic color link
Nordic

#1D393C

Conversions between color systems and etc.

  • HEX#1B3C4B
  • RGB27, 60, 75
  • CMYK19, 6, 0, 71
  • CSSrgb(27, 60, 75)
  • HSL199°, 47%, 20%
  • HSL Precise198.75°, 47.059%, 20%
  • HSV199°, 64%, 29%
  • HSB199°, 64%, 29%
  • Normalized R (0.0–1.0)0.106
  • Normalized G (0.0–1.0)0.235
  • Normalized B (0.0–1.0)0.294
  • GLSLvec3(0.106, 0.235, 0.294)
  • GLSL with alphavec4(0.106, 0.235, 0.294, 1.000)
  • HLSL / Metalfloat3(0.106, 0.235, 0.294)
  • Percentage of Red in RGB10.6%
  • Percentage of Green in RGB23.5%
  • Percentage of Blue in RGB29.4%
  • Color FamilyAzure
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID1B3C4B
  • DECIMAL ID1784907
  • Name LengthThis color has no name
  • This page visited2 times
  • Counting from2025-01-01