Information about #393939 color

#393939 color image

Basic facts about this digital color

#393939 falls into the Greyscale Color FamilyDesaturated, Dark brightness. Its exact recipe is rgb(57, 57, 57) — 22.4% red, 22.4% green, 22.4% blue — and for print it converts to CMYK 0 / 0 / 0 / 78. Curious how these numbers work? Read our RGB color codes guide.

#393939 is a muted, almost neutral neutral grey that stays on the darker end of the scale. It is a natural fit for moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is practically indistinguishable from HLH SG Grey (#383838). Slightly further away sit Botany Bay (#373837) and Possessed (#373B38).

Under the hood all three RGB channels are equal (57 each), placing #393939 exactly on the neutral axis of the color space. On this background, white text reaches a 11.5:1 contrast ratio (passing WCAG AAA); black stays at 1.8:1. For print, note the heavy black component (K:78) — ink coverage matters with tones this deep. This shade is reserved in the Register and is not available for naming.

#393939 color variations

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

Why this page shows fewer blocks

#393939 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 #393939

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

HLH SG Grey color link
HLH SG Grey

#383838

Botany Bay color link
Botany Bay

#373837

Possessed color link
Possessed

#373B38

Atom color link
Atom

#373A3C

Zeus color link
Zeus

#3B3C38

Onyx color link
Onyx

#353839

Dark Grey color link
Dark Grey

#363737

Vulcan color link
Vulcan

#36383C

Ironsand color link
Ironsand

#393735

Squall color link
Squall

#3A3B35

Conversions between color systems and etc.

  • HEX#393939
  • RGB57, 57, 57
  • CMYK0, 0, 0, 78
  • CSSrgb(57, 57, 57)
  • HSL0°, 0%, 22%
  • HSL Precise0°, 0%, 22.353%
  • HSV0°, 0%, 22%
  • HSB0°, 0%, 22%
  • Normalized R (0.0–1.0)0.224
  • Normalized G (0.0–1.0)0.224
  • Normalized B (0.0–1.0)0.224
  • GLSLvec3(0.224, 0.224, 0.224)
  • GLSL with alphavec4(0.224, 0.224, 0.224, 1.000)
  • HLSL / Metalfloat3(0.224, 0.224, 0.224)
  • Percentage of Red in RGB22.4%
  • Percentage of Green in RGB22.4%
  • Percentage of Blue in RGB22.4%
  • Color FamilyGreyscale
  • Saturation FamilyDesaturated
  • Lightness FamilyDark
  • HEX ID393939
  • DECIMAL ID3750201
  • Name LengthThis color has no name
  • Seen by search & AI crawlers59 times
  • Counting from2025-01-01