Information about #309BBC color

#309BBC color image

Basic facts about this digital color

In the Register's classification, #309BBC belongs to the Cyan Color Family, featuring Moderate Saturation and Light brightness. In numbers: rgb(48, 155, 188) (18.8% red, 60.8% green, 73.7% blue), or CMYK 55 / 13 / 0 / 26 for print. Curious how these numbers work? Read our RGB color codes guide.

#309BBC presents itself as a confidently colored cyan — one that sits on the lighter side of the spectrum. It is a natural fit for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is almost identical to Homebox Blue (#36A2B9). Nearby in the Register you will also find Peacock (#33A1C9) and Pelorous (#2599B2).

Technically, the mix leans on its blue channel (rgb(48, 155, 188)), which gives #309BBC its character. If you plan to put text on a #309BBC background, choose black — the contrast ratio is 6.5:1 (passing WCAG AA), while white manages only 3.2:1. #309BBC has no official name yet. If this shade means something to you, you can be the one to name it.

#309BBC color variations

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

#309BBC 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 #309BBC

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

Homebox Blue color link
Homebox Blue

#36A2B9

Peacock color link
Peacock

#33A1C9

Pelorous color link
Pelorous

#2599B2

Blue Ivy color link
Blue Ivy

#3090C7

Boston Blue color link
Boston Blue

#3B91B4

Moonstone color link
Moonstone

#3AA8C1

Douban Blue color link
Douban Blue

#2496CD

Freefall color link
Freefall

#1D95C9

Curious Blue color link
Curious Blue

#2596D1

Aquarius color link
Aquarius

#43A8C5

Endorphin color link
Endorphin

#4190AD

Conversions between color systems and etc.

  • HEX#309BBC
  • RGB48, 155, 188
  • CMYK55, 13, 0, 26
  • CSSrgb(48, 155, 188)
  • HSL194°, 59%, 46%
  • HSL Precise194.143°, 59.322%, 46.275%
  • HSV194°, 74%, 74%
  • HSB194°, 74%, 74%
  • Normalized R (0.0–1.0)0.188
  • Normalized G (0.0–1.0)0.608
  • Normalized B (0.0–1.0)0.737
  • GLSLvec3(0.188, 0.608, 0.737)
  • GLSL with alphavec4(0.188, 0.608, 0.737, 1.000)
  • HLSL / Metalfloat3(0.188, 0.608, 0.737)
  • Percentage of Red in RGB18.8%
  • Percentage of Green in RGB60.8%
  • Percentage of Blue in RGB73.7%
  • Color FamilyCyan
  • Saturation FamilyModerate Saturation
  • Lightness FamilyLight
  • HEX ID309BBC
  • DECIMAL ID3185596
  • Name LengthThis color has no name
  • This page visited3 times
  • Counting from2025-01-01