Information about #399FDB color

#399FDB color image

Basic facts about this digital color

#399FDB falls into the Azure Color FamilyHigh Saturation, Light brightness. Its exact recipe is rgb(57, 159, 219) — 22.4% red, 62.4% green, 85.9% blue — and for print it converts to CMYK 64 / 24 / 0 / 14. New to color codes? See our guide to RGB color codes.

#399FDB is a vivid, lively sky-leaning azure that sits on the lighter side of the spectrum. In practice it works well for logos, highlights and anything that needs to be noticed first. In The Official Register of Color Names it is very close to Summer Sky (#38B0DE). Nearby in the Register you will also find Tufts Blue (#3E8EDE) and Peacock (#33A1C9).

Technically, the mix leans on its blue channel (rgb(57, 159, 219)), which gives #399FDB its character. On this background, black text reaches a 7.2:1 contrast ratio (passing WCAG AAA); white stays at 2.9:1. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#399FDB color variations

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

#399FDB 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 #399FDB

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

Summer Sky color link
Summer Sky

#38B0DE

Tufts Blue color link
Tufts Blue

#3E8EDE

Peacock color link
Peacock

#33A1C9

Titans Blue color link
Titans Blue

#4B92DB

Maximum Blue color link
Maximum Blue

#47ABCC

Curious Blue color link
Curious Blue

#2596D1

Picton Blue color link
Picton Blue

#45B1E8

Aquarius color link
Aquarius

#43A8C5

Blue Ivy color link
Blue Ivy

#3090C7

Conversions between color systems and etc.

  • HEX#399FDB
  • RGB57, 159, 219
  • CMYK64, 24, 0, 14
  • CSSrgb(57, 159, 219)
  • HSL202°, 69%, 54%
  • HSL Precise202.222°, 69.231%, 54.118%
  • HSV202°, 74%, 86%
  • HSB202°, 74%, 86%
  • Normalized R (0.0–1.0)0.224
  • Normalized G (0.0–1.0)0.624
  • Normalized B (0.0–1.0)0.859
  • GLSLvec3(0.224, 0.624, 0.859)
  • GLSL with alphavec4(0.224, 0.624, 0.859, 1.000)
  • HLSL / Metalfloat3(0.224, 0.624, 0.859)
  • Percentage of Red in RGB22.4%
  • Percentage of Green in RGB62.4%
  • Percentage of Blue in RGB85.9%
  • Color FamilyAzure
  • Saturation FamilyHigh Saturation
  • Lightness FamilyLight
  • HEX ID399FDB
  • DECIMAL ID3776475
  • Name LengthThis color has no name
  • Seen by search & AI crawlers21 times
  • Counting from2025-01-01