Information about #306391 color

#306391 color image

Basic facts about this digital color

The digital color #306391 is classified in the Register under the Azure Color Family, with Moderate Saturation and Neutral brightness. Its exact recipe is rgb(48, 99, 145) — 18.8% red, 38.8% green, 56.9% blue — and for print it converts to CMYK 38 / 18 / 0 / 43. Curious how these numbers work? Read our RGB color codes guide.

#306391 presents itself as a confidently colored azure — one that holds a balanced mid-tone. It is a natural fit for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is practically indistinguishable from Ugly Blue (#31668A). Its next-closest registered neighbors are Filmpro Sky Blue (#355D90) and Optimist (#2B688D).

Technically, the mix leans on its blue channel (rgb(48, 99, 145)), which gives #306391 its character. If you plan to put text on a #306391 background, choose white — the contrast ratio is 6.3:1 (passing WCAG AA), while black manages only 3.3:1. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#306391 color variations

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

#306391 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 #306391

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

Ugly Blue color link
Ugly Blue

#31668A

Optimist color link
Optimist

#2B688D

Lapis Lazuli color link
Lapis Lazuli

#26619C

Yarra color link
Yarra

#20608E

St Tropaz color link
St Tropaz

#2D569B

Wavelength color link
Wavelength

#3C6886

Lochmara color link
Lochmara

#316EA0

YInMn Blue color link
YInMn Blue

#2E5090

Chinese Blue color link
Chinese Blue

#365194

Conversions between color systems and etc.

  • HEX#306391
  • RGB48, 99, 145
  • CMYK38, 18, 0, 43
  • CSSrgb(48, 99, 145)
  • HSL208°, 50%, 38%
  • HSL Precise208.454°, 50.259%, 37.843%
  • HSV208°, 67%, 57%
  • HSB208°, 67%, 57%
  • Normalized R (0.0–1.0)0.188
  • Normalized G (0.0–1.0)0.388
  • Normalized B (0.0–1.0)0.569
  • GLSLvec3(0.188, 0.388, 0.569)
  • GLSL with alphavec4(0.188, 0.388, 0.569, 1.000)
  • HLSL / Metalfloat3(0.188, 0.388, 0.569)
  • Percentage of Red in RGB18.8%
  • Percentage of Green in RGB38.8%
  • Percentage of Blue in RGB56.9%
  • Color FamilyAzure
  • Saturation FamilyModerate Saturation
  • Lightness FamilyNeutral
  • HEX ID306391
  • DECIMAL ID3171217
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01