Information about #0B183B color

#0B183B color image

Basic facts about this digital color

In the Register's classification, #0B183B belongs to the Azure Color Family, featuring High Saturation and Dark brightness. In numbers: rgb(11, 24, 59) (4.3% red, 9.4% green, 23.1% blue), or CMYK 19 / 14 / 0 / 77 for print. Curious how these numbers work? Read our RGB color codes guide.

A strongly colored steel-blue azure, #0B183B leans clearly toward the dark side. Expect to see shades like this in night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Tangaroa (#03163C). Its next-closest registered neighbors are Navy (#01153E) and Deep Cove (#051040).

The recipe behind #0B183B is rgb(11, 24, 59), with blue as the dominant ingredient. If you plan to put text on a #0B183B background, choose white — the contrast ratio is 17.4:1 (passing WCAG AAA), while black manages only 1.2:1. For print, note the heavy black component (K:77) — ink coverage matters with tones this deep. No one has named #0B183B so far. Register a name for it and it becomes a permanent record.

#0B183B color variations

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

#0B183B 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 #0B183B

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#0B183B
  • RGB11, 24, 59
  • CMYK19, 14, 0, 77
  • CSSrgb(11, 24, 59)
  • HSL224°, 69%, 14%
  • HSL Precise223.75°, 68.571%, 13.725%
  • HSV224°, 81%, 23%
  • HSB224°, 81%, 23%
  • Normalized R (0.0–1.0)0.043
  • Normalized G (0.0–1.0)0.094
  • Normalized B (0.0–1.0)0.231
  • GLSLvec3(0.043, 0.094, 0.231)
  • GLSL with alphavec4(0.043, 0.094, 0.231, 1.000)
  • HLSL / Metalfloat3(0.043, 0.094, 0.231)
  • Percentage of Red in RGB4.3%
  • Percentage of Green in RGB9.4%
  • Percentage of Blue in RGB23.1%
  • Color FamilyAzure
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • HEX ID0B183B
  • DECIMAL ID727099
  • Name LengthThis color has no name
  • Seen by search & AI crawlers22 times
  • Counting from2025-01-01