Information about #1B645F color

#1B645F color image

Basic facts about this digital color

In the Register's classification, #1B645F belongs to the Cyan Color Family, featuring Moderate Saturation and Dark brightness. The mix behind it: rgb(27, 100, 95) — 10.6% red, 39.2% green, 37.3% blue; the print equivalent is CMYK 29 / 0 / 2 / 61. New to color codes? See our guide to RGB color codes.

#1B645F is a confidently colored water-like cyan that leans clearly toward the dark side. In practice it works well for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is a hair away from Caesar (#1B6767). Its next-closest registered neighbors are Dark Green Blue (#1F6357) and Globe (#256761).

In RGB terms — rgb(27, 100, 95) — the green channel does the heavy lifting here. If you plan to put text on a #1B645F background, choose white — the contrast ratio is 6.9:1 (passing WCAG AA), while black manages only 3.0:1. On paper it relies strongly on black ink (K:61), so proof dark layouts before a large print run. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#1B645F color variations

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

#1B645F 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 #1B645F

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

Caesar color link
Caesar

#1B6767

Globe color link
Globe

#256761

Eden color link
Eden

#266255

Robin Hood color link
Robin Hood

#167057

Evening Sea color link
Evening Sea

#26604F

Retro color link
Retro

#1B5256

Dark Opal color link
Dark Opal

#275953

Casal color link
Casal

#2F6168

Conversions between color systems and etc.

  • HEX#1B645F
  • RGB27, 100, 95
  • CMYK29, 0, 2, 61
  • CSSrgb(27, 100, 95)
  • HSL176°, 57%, 25%
  • HSL Precise175.89°, 57.48%, 24.902%
  • HSV176°, 73%, 39%
  • HSB176°, 73%, 39%
  • Normalized R (0.0–1.0)0.106
  • Normalized G (0.0–1.0)0.392
  • Normalized B (0.0–1.0)0.373
  • GLSLvec3(0.106, 0.392, 0.373)
  • GLSL with alphavec4(0.106, 0.392, 0.373, 1.000)
  • HLSL / Metalfloat3(0.106, 0.392, 0.373)
  • Percentage of Red in RGB10.6%
  • Percentage of Green in RGB39.2%
  • Percentage of Blue in RGB37.3%
  • Color FamilyCyan
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID1B645F
  • DECIMAL ID1795167
  • Name LengthThis color has no name
  • Seen by search & AI crawlers30 times
  • Counting from2025-01-01