Information about #555555 color

#555555 color image

Basic facts about this digital color

The digital color #555555 is classified in the Register under the Greyscale Color Family, with Desaturated and Neutral brightness. In numbers: rgb(85, 85, 85) (33.3% red, 33.3% green, 33.3% blue), or CMYK 0 / 0 / 0 / 67 for print. Curious how these numbers work? Read our RGB color codes guide.

#555555 is a softly muted balanced grey tone that holds a balanced mid-tone. It is a natural fit for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is almost identical to Dim Grey (#545454). Its next-closest registered neighbors are Half Baltic Sea (#565657) and Quarter Foundry (#525557).

Technically, #555555 is a perfectly balanced RGB mix — red, green and blue all sit at 85, which is what makes it a true neutral. If you plan to put text on a #555555 background, choose white — the contrast ratio is 7.5:1 (passing WCAG AAA), while black manages only 2.8:1. For print, note the heavy black component (K:67) — ink coverage matters with tones this deep. This shade is reserved in the Register and is not available for naming.

#555555 color variations

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

Why this page shows fewer blocks

#555555 belongs to the Greyscale Color Family, and greyscale colors have no hue. Hue is an angle on the color wheel, and that angle only exists when a color leans toward one primary more than the others. Here all three channels are equal (R = G = B), so there is nothing to lean and no angle to measure.

Everything built on rotating that angle therefore has nothing to rotate. A complementary color is the hue 180° away — for a grey, that is the same grey. The same goes for analogous, triadic, tetradic and square harmonies. Rather than show seven identical swatches, the register leaves the Hues variation strip and the whole Harmonies section out.

What remains is everything that depends on lightness rather than hue. Tints, shades and tones still work, because they move the color up and down the scale instead of around the wheel. So do the nearest named colors, the conversions and the adjacent color codes.

How the register classifies colors · All greyscale colors in the register

Nearest named colors to #555555

The closest officially registered color names in the Register, ordered by similarity.

Conversions between color systems and etc.

  • HEX#555555
  • RGB85, 85, 85
  • CMYK0, 0, 0, 67
  • CSSrgb(85, 85, 85)
  • HSL0°, 0%, 33%
  • HSL Precise0°, 0%, 33.333%
  • HSV0°, 0%, 33%
  • HSB0°, 0%, 33%
  • Normalized R (0.0–1.0)0.333
  • Normalized G (0.0–1.0)0.333
  • Normalized B (0.0–1.0)0.333
  • GLSLvec3(0.333, 0.333, 0.333)
  • GLSL with alphavec4(0.333, 0.333, 0.333, 1.000)
  • HLSL / Metalfloat3(0.333, 0.333, 0.333)
  • Percentage of Red in RGB33.3%
  • Percentage of Green in RGB33.3%
  • Percentage of Blue in RGB33.3%
  • Color FamilyGreyscale
  • Saturation FamilyDesaturated
  • Lightness FamilyNeutral
  • HEX ID555555
  • DECIMAL ID5592405
  • Name LengthThis color has no name
  • Seen by search & AI crawlers101 times
  • Counting from2025-01-01