Information about #3F3F51 color

#3F3F51 color image

Basic facts about this digital color

#3F3F51 falls into the Blue Color Family — Low Saturation, Neutral brightness. Its exact recipe is rgb(63, 63, 81) — 24.7% red, 24.7% green, 31.8% blue — and for print it converts to CMYK 7 / 7 / 0 / 68. New to color codes? See our guide to RGB color codes.

The color #3F3F51 reads as a softly toned classic blue and occupies the middle of the lightness scale. Designers typically reach for tones like this for balanced palettes where no single element should shout. In The Official Register of Color Names it is a hair away from Catwalk (#3D3E4C). Slightly further away sit Warlord (#45404F) and Skywater (#404653).

The recipe behind #3F3F51 is rgb(63, 63, 81), with blue as the dominant ingredient. On this background, white text reaches a 10.3:1 contrast ratio (passing WCAG AAA); black stays at 2.0:1. On paper it relies strongly on black ink (K:68), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #3F3F51 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#3F3F51 color variations

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

#3F3F51 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 #3F3F51

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

Catwalk color link
Catwalk

#3D3E4C

Warlord color link
Warlord

#45404F

Skywater color link
Skywater

#404653

Rhino color link
Rhino

#3D4653

Sputnik color link
Sputnik

#373E54

Arsenic color link
Arsenic

#3B444B

Mollusc color link
Mollusc

#43464B

Cloud Burst color link
Cloud Burst

#353E4F

Conversions between color systems and etc.

  • HEX#3F3F51
  • RGB63, 63, 81
  • CMYK7, 7, 0, 68
  • CSSrgb(63, 63, 81)
  • HSL240°, 13%, 28%
  • HSL Precise240°, 12.5%, 28.235%
  • HSV240°, 22%, 32%
  • HSB240°, 22%, 32%
  • Normalized R (0.0–1.0)0.247
  • Normalized G (0.0–1.0)0.247
  • Normalized B (0.0–1.0)0.318
  • GLSLvec3(0.247, 0.247, 0.318)
  • GLSL with alphavec4(0.247, 0.247, 0.318, 1.000)
  • HLSL / Metalfloat3(0.247, 0.247, 0.318)
  • Percentage of Red in RGB24.7%
  • Percentage of Green in RGB24.7%
  • Percentage of Blue in RGB31.8%
  • Color FamilyBlue
  • Saturation FamilyLow Saturation
  • Lightness FamilyNeutral
  • HEX ID3F3F51
  • DECIMAL ID4144977
  • Name LengthThis color has no name
  • Seen by search & AI crawlers11 times
  • Counting from2025-01-01