Information about #303A3A color

#303A3A color image

Basic facts about this digital color

#303A3A falls into the Cyan Color Family — Desaturated, Dark brightness. Its exact recipe is rgb(48, 58, 58) — 18.8% red, 22.7% green, 22.7% blue — and for print it converts to CMYK 4 / 0 / 0 / 77. New to color codes? See our guide to RGB color codes.

#303A3A is a quiet, subdued balanced grey tone that leans clearly toward the dark side. In practice it works well for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is practically indistinguishable from Onyx (#353839). Its next-closest registered neighbors are Shark (#34363A) and High Tide (#32373F).

In RGB terms — rgb(48, 58, 58) — the green channel does the heavy lifting here. Accessibility-wise, white text works best on #303A3A: 11.7:1 contrast (passing WCAG AAA) versus 1.8:1 for black. On paper it relies strongly on black ink (K:77), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #303A3A is still unnamed — it can be claimed and named in The Official Register of Color Names.

#303A3A color variations

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

#303A3A 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 #303A3A

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

Onyx color link
Onyx

#353839

Shark color link
Shark

#34363A

High Tide color link
High Tide

#32373F

Vulcan color link
Vulcan

#36383C

Woody Bay color link
Woody Bay

#33343A

Iron Storage color link
Iron Storage

#2B3736

Grey Friars color link
Grey Friars

#313436

Atom color link
Atom

#373A3C

Dark Grey color link
Dark Grey

#363737

Possessed color link
Possessed

#373B38

Petanque color link
Petanque

#2E3E34

Conversions between color systems and etc.

  • HEX#303A3A
  • RGB48, 58, 58
  • CMYK4, 0, 0, 77
  • CSSrgb(48, 58, 58)
  • HSL180°, 9%, 21%
  • HSL Precise180°, 9.434%, 20.784%
  • HSV180°, 17%, 23%
  • HSB180°, 17%, 23%
  • Normalized R (0.0–1.0)0.188
  • Normalized G (0.0–1.0)0.227
  • Normalized B (0.0–1.0)0.227
  • GLSLvec3(0.188, 0.227, 0.227)
  • GLSL with alphavec4(0.188, 0.227, 0.227, 1.000)
  • HLSL / Metalfloat3(0.188, 0.227, 0.227)
  • Percentage of Red in RGB18.8%
  • Percentage of Green in RGB22.7%
  • Percentage of Blue in RGB22.7%
  • Color FamilyCyan
  • Saturation FamilyDesaturated
  • Lightness FamilyDark
  • HEX ID303A3A
  • DECIMAL ID3160634
  • Name LengthThis color has no name
  • Seen by search & AI crawlers31 times
  • Counting from2025-01-01