Information about #6399AD color

#6399AD color image

Basic facts about this digital color

The digital color #6399AD is classified in the Register under the Azure Color Family, with Mild Saturation and Light brightness. In numbers: rgb(99, 153, 173) (38.8% red, 60% green, 67.8% blue), or CMYK 29 / 8 / 0 / 32 for print. New to color codes? See our guide to RGB color codes.

#6399AD is a softly balanced steel-blue azure that sits on the lighter side of the spectrum. In practice it works well for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is almost identical to Crystal Blue (#68A0B0). Nearby in the Register you will also find Shakespeare (#609AB8) and Ultramarine Color (#5D8CAE).

In RGB terms — rgb(99, 153, 173) — the blue channel does the heavy lifting here. If you plan to put text on a #6399AD background, choose black — the contrast ratio is 6.7:1 (passing WCAG AA), while white manages only 3.1:1. #6399AD has no official name yet. If this shade means something to you, you can be the one to name it.

#6399AD color variations

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

#6399AD 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 #6399AD

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

Crystal Blue color link
Crystal Blue

#68A0B0

Shakespeare color link
Shakespeare

#609AB8

Cadet Blue color link
Cadet Blue

#5F9EA0

Blue Moon color link
Blue Moon

#7296AB

Awash color link
Awash

#739CA9

Hannah color link
Hannah

#6DA5B4

Grey Blue color link
Grey Blue

#6B8BA4

Toto color link
Toto

#519DAF

Faded Blue color link
Faded Blue

#658CBB

Conversions between color systems and etc.

  • HEX#6399AD
  • RGB99, 153, 173
  • CMYK29, 8, 0, 32
  • CSSrgb(99, 153, 173)
  • HSL196°, 31%, 53%
  • HSL Precise196.216°, 31.092%, 53.333%
  • HSV196°, 43%, 68%
  • HSB196°, 43%, 68%
  • Normalized R (0.0–1.0)0.388
  • Normalized G (0.0–1.0)0.600
  • Normalized B (0.0–1.0)0.678
  • GLSLvec3(0.388, 0.600, 0.678)
  • GLSL with alphavec4(0.388, 0.600, 0.678, 1.000)
  • HLSL / Metalfloat3(0.388, 0.600, 0.678)
  • Percentage of Red in RGB38.8%
  • Percentage of Green in RGB60%
  • Percentage of Blue in RGB67.8%
  • Color FamilyAzure
  • Saturation FamilyMild Saturation
  • Lightness FamilyLight
  • HEX ID6399AD
  • DECIMAL ID6527405
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01