Information about #1F155B color

#1F155B color image

Basic facts about this digital color

The digital color #1F155B is classified in the Register under the Blue Color Family, with High Saturation and Dark brightness. In numbers: rgb(31, 21, 91) (12.2% red, 8.2% green, 35.7% blue), or CMYK 24 / 27 / 0 / 64 for print. New to color codes? See our guide to RGB color codes.

The color #1F155B reads as a strongly colored deep-sea blue and leans clearly toward the dark side. Designers typically reach for tones like this for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Suns Purple (#1D1160). Its next-closest registered neighbors are Dark Indigo (#1F0954) and Royal Indigo (#240952).

The recipe behind #1F155B is rgb(31, 21, 91), with blue as the dominant ingredient. If you plan to put text on a #1F155B background, choose white — the contrast ratio is 16.0:1 (passing WCAG AAA), while black manages only 1.3:1. For print, note the heavy black component (K:64) — ink coverage matters with tones this deep. No one has named #1F155B so far. Register a name for it and it becomes a permanent record.

#1F155B color variations

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

#1F155B 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 #1F155B

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

#1F155B color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

Conversions between color systems and etc.

  • HEX#1F155B
  • RGB31, 21, 91
  • CMYK24, 27, 0, 64
  • HSL249°, 63%, 22%
  • HSL Precise248.571°, 62.5%, 21.961%
  • HSV249°, 77%, 36%
  • HSB249°, 77%, 36%
  • HEX ID1F155B
  • DECIMAL ID2037083
  • Name LengthThis color has no name
  • Color Family (Hue)Blue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • Percentage of Red in RGB12.2%
  • Percentage of Green in RGB8.2%
  • Percentage of Blue in RGB35.7%
  • This page visited6 times
  • Counting from2025-01-01