Information about #343C3F color

#343C3F color image

Basic facts about this digital color

In the Register's classification, #343C3F belongs to the Azure Color Family, featuring Desaturated and Dark brightness. The mix behind it: rgb(52, 60, 63) — 20.4% red, 23.5% green, 24.7% blue; the print equivalent is CMYK 4 / 1 / 0 / 75. New to color codes? See our guide to RGB color codes.

#343C3F is a softly muted neutral grey that leans clearly toward the dark side. In practice it works well for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is a hair away from Metallic Charcoal (#343B40). Its next-closest registered neighbors are Mine Shaft (#373E41) and Atom (#373A3C).

Technically, the mix leans on its blue channel (rgb(52, 60, 63)), which gives #343C3F its character. If you plan to put text on a #343C3F background, choose white — the contrast ratio is 11.3:1 (passing WCAG AAA), while black manages only 1.9:1. On paper it relies strongly on black ink (K:75), so proof dark layouts before a large print run. No one has named #343C3F so far. Register a name for it and it becomes a permanent record.

#343C3F color variations

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

#343C3F 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 #343C3F

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

Mine Shaft color link
Mine Shaft

#373E41

Atom color link
Atom

#373A3C

High Tide color link
High Tide

#32373F

Vulcan color link
Vulcan

#36383C

Onando color link
Onando

#364141

Mirage color link
Mirage

#373F43

Gotham color link
Gotham

#303B44

Black Marlin color link
Black Marlin

#383740

Revolver color link
Revolver

#37363F

Onyx color link
Onyx

#353839

Charade color link
Charade

#394043

Conversions between color systems and etc.

  • HEX#343C3F
  • RGB52, 60, 63
  • CMYK4, 1, 0, 75
  • CSSrgb(52, 60, 63)
  • HSL196°, 10%, 23%
  • HSL Precise196.364°, 9.565%, 22.549%
  • HSV196°, 17%, 25%
  • HSB196°, 17%, 25%
  • Normalized R (0.0–1.0)0.204
  • Normalized G (0.0–1.0)0.235
  • Normalized B (0.0–1.0)0.247
  • GLSLvec3(0.204, 0.235, 0.247)
  • GLSL with alphavec4(0.204, 0.235, 0.247, 1.000)
  • HLSL / Metalfloat3(0.204, 0.235, 0.247)
  • Percentage of Red in RGB20.4%
  • Percentage of Green in RGB23.5%
  • Percentage of Blue in RGB24.7%
  • Color FamilyAzure
  • Saturation FamilyDesaturated
  • Lightness FamilyDark
  • HEX ID343C3F
  • DECIMAL ID3423295
  • Name LengthThis color has no name
  • Seen by search & AI crawlers8 times
  • Counting from2025-01-01