Information about #646D6C color

#646D6C color image

Basic facts about this digital color

#646D6C falls into the Cyan Color Family — Desaturated, Light brightness. Its exact recipe is rgb(100, 109, 108) — 39.2% red, 42.7% green, 42.4% blue — and for print it converts to CMYK 4 / 0 / 0 / 57. Curious how these numbers work? Read our RGB color codes guide.

The color #646D6C reads as a quiet, subdued grey and feels open and friendly. Expect to see shades like this in versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is a hair away from Mid Grey (#666A6D). Its next-closest registered neighbors are Pale Sky (#636D70) and Nevada (#666F6F).

In RGB terms — rgb(100, 109, 108) — the green channel does the heavy lifting here. Accessibility-wise, white text works best on #646D6C: 5.3:1 contrast (passing WCAG AA) versus 3.9:1 for black. Out of 16,777,216 possible colors, #646D6C is still unnamed — it can be claimed and named in The Official Register of Color Names.

#646D6C color variations

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

#646D6C 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 #646D6C

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

Mid Grey color link
Mid Grey

#666A6D

Pale Sky color link
Pale Sky

#636D70

Nevada color link
Nevada

#666F6F

Quarter Tuna color link
Quarter Tuna

#656A70

Corduroy color link
Corduroy

#606E68

Dim Gray color link
Dim Gray

#696969

Scarpa Flow color link
Scarpa Flow

#6B6A6C

Shuttle Grey color link
Shuttle Grey

#61666B

Granite Gray color link
Granite Gray

#676767

Traffic color link
Traffic

#6C6D68

Obelisk color link
Obelisk

#617274

Conversions between color systems and etc.

  • HEX#646D6C
  • RGB100, 109, 108
  • CMYK4, 0, 0, 57
  • CSSrgb(100, 109, 108)
  • HSL173°, 4%, 41%
  • HSL Precise173.333°, 4.306%, 40.98%
  • HSV173°, 8%, 43%
  • HSB173°, 8%, 43%
  • Normalized R (0.0–1.0)0.392
  • Normalized G (0.0–1.0)0.427
  • Normalized B (0.0–1.0)0.424
  • GLSLvec3(0.392, 0.427, 0.424)
  • GLSL with alphavec4(0.392, 0.427, 0.424, 1.000)
  • HLSL / Metalfloat3(0.392, 0.427, 0.424)
  • Percentage of Red in RGB39.2%
  • Percentage of Green in RGB42.7%
  • Percentage of Blue in RGB42.4%
  • Color FamilyCyan
  • Saturation FamilyDesaturated
  • Lightness FamilyLight
  • HEX ID646D6C
  • DECIMAL ID6581612
  • Name LengthThis color has no name
  • Seen by search & AI crawlers21 times
  • Counting from2025-01-01