Information about #153D51 color

#153D51 color image

Basic facts about this digital color

#153D51 falls into the Azure Color Family — Moderate Saturation, Dark brightness. The mix behind it: rgb(21, 61, 81) — 8.2% red, 23.9% green, 31.8% blue; the print equivalent is CMYK 24 / 8 / 0 / 68. New to color codes? See our guide to RGB color codes.

#153D51 presents itself as a clearly saturated steel-blue azure — one that stays on the darker end of the scale. In practice it works well for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is a hair away from Barometer (#11394C). Slightly further away sit Nationalist Blue (#174358) and Dark Blue Grey (#1F3B4D).

In RGB terms — rgb(21, 61, 81) — the blue channel does the heavy lifting here. Accessibility-wise, white text works best on #153D51: 11.5:1 contrast (passing WCAG AAA) versus 1.8:1 for black. For print, note the heavy black component (K:68) — ink coverage matters with tones this deep. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#153D51 color variations

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

#153D51 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 #153D51

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

Barometer color link
Barometer

#11394C

Regal Blue color link
Regal Blue

#203F58

Cello color link
Cello

#1E385B

Tiber color link
Tiber

#184343

Cyprus color link
Cyprus

#0F4645

Nile Blue color link
Nile Blue

#253F4E

Tarawera color link
Tarawera

#253C48

Shipshape color link
Shipshape

#21425F

Regatta color link
Regatta

#192C49

Conversions between color systems and etc.

  • HEX#153D51
  • RGB21, 61, 81
  • CMYK24, 8, 0, 68
  • CSSrgb(21, 61, 81)
  • HSL200°, 59%, 20%
  • HSL Precise200°, 58.824%, 20%
  • HSV200°, 74%, 32%
  • HSB200°, 74%, 32%
  • Normalized R (0.0–1.0)0.082
  • Normalized G (0.0–1.0)0.239
  • Normalized B (0.0–1.0)0.318
  • GLSLvec3(0.082, 0.239, 0.318)
  • GLSL with alphavec4(0.082, 0.239, 0.318, 1.000)
  • HLSL / Metalfloat3(0.082, 0.239, 0.318)
  • Percentage of Red in RGB8.2%
  • Percentage of Green in RGB23.9%
  • Percentage of Blue in RGB31.8%
  • Color FamilyAzure
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID153D51
  • DECIMAL ID1391953
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 times
  • Counting from2025-01-01