Information about HLH SG Grey color

#383838 - HLH SG Grey color image

Basic facts about this digital color

#383838, known as "HLH SG Grey", falls into the Greyscale Color Family — Desaturated, Dark brightness. Its exact recipe is rgb(56, 56, 56) — 22% red, 22% green, 22% blue — and for print it converts to CMYK 0 / 0 / 0 / 78. Curious how these numbers work? Read our RGB color codes guide.

#383838 is a softly muted balanced grey tone that leans clearly toward the dark side. It is a natural fit for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is practically indistinguishable from Botany Bay (#373837). Its next-closest registered neighbors are Dark Grey (#363737) and Onyx (#353839).

Technically, #383838 is a perfectly balanced RGB mix — red, green and blue all sit at 56, which is what makes it a true neutral. Accessibility-wise, white text works best on #383838: 11.7:1 contrast (passing WCAG AAA) versus 1.8:1 for black. For print, note the heavy black component (K:78) — ink coverage matters with tones this deep. This precise shade carries the officially registered name "HLH SG Grey" in the Register.

HLH SG Grey color variations

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

Why this page shows fewer blocks

HLH SG Grey 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 HLH SG Grey

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

Botany Bay color link
Botany Bay

#373837

Dark Grey color link
Dark Grey

#363737

Onyx color link
Onyx

#353839

Possessed color link
Possessed

#373B38

Ironsand color link
Ironsand

#393735

Vulcan color link
Vulcan

#36383C

Atom color link
Atom

#373A3C

Squall color link
Squall

#3A3B35

Shark color link
Shark

#34363A

Zeus color link
Zeus

#3B3C38

Conversions between color systems and etc.

  • HEX#383838
  • RGB56, 56, 56
  • CMYK0, 0, 0, 78
  • CSSrgb(56, 56, 56)
  • HSL0°, 0%, 22%
  • HSL Precise0°, 0%, 21.961%
  • HSV0°, 0%, 22%
  • HSB0°, 0%, 22%
  • Normalized R (0.0–1.0)0.220
  • Normalized G (0.0–1.0)0.220
  • Normalized B (0.0–1.0)0.220
  • GLSLvec3(0.220, 0.220, 0.220)
  • GLSL with alphavec4(0.220, 0.220, 0.220, 1.000)
  • HLSL / Metalfloat3(0.220, 0.220, 0.220)
  • Percentage of Red in RGB22%
  • Percentage of Green in RGB22%
  • Percentage of Blue in RGB22%
  • Color FamilyGreyscale
  • Saturation FamilyDesaturated
  • Lightness FamilyDark
  • HEX ID383838
  • DECIMAL ID3684408
  • Name Length11
  • This page visited16 times
  • Counting from2025-01-01