Information about #1B3C64 color

#1B3C64 color image

Basic facts about this digital color

The digital color #1B3C64 is classified in the Register under the Azure Color Family, with Moderate Saturation and Dark brightness. Its exact recipe is rgb(27, 60, 100) — 10.6% red, 23.5% green, 39.2% blue — and for print it converts to CMYK 29 / 16 / 0 / 61. New to color codes? See our guide to RGB color codes.

#1B3C64 presents itself as a clearly saturated sky-leaning azure — one that leans clearly toward the dark side. In practice it works well for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Into The Blue (#193766). Its next-closest registered neighbors are Apollo Blue (#163968) and Shipshape (#21425F).

The recipe behind #1B3C64 is rgb(27, 60, 100), with blue as the dominant ingredient. If you plan to put text on a #1B3C64 background, choose white — the contrast ratio is 11.2:1 (passing WCAG AAA), while black manages only 1.9:1. On paper it relies strongly on black ink (K:61), so proof dark layouts before a large print run. No one has named #1B3C64 so far. Register a name for it and it becomes a permanent record.

#1B3C64 color variations

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

#1B3C64 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 #1B3C64

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

Apollo Blue color link
Apollo Blue

#163968

Shipshape color link
Shipshape

#21425F

Cello color link
Cello

#1E385B

Biscay color link
Biscay

#1B3162

Regal Blue color link
Regal Blue

#203F58

Confidante color link
Confidante

#233167

Delft Blue color link
Delft Blue

#1F305E

Blue Clouds color link
Blue Clouds

#273C5A

Conversions between color systems and etc.

  • HEX#1B3C64
  • RGB27, 60, 100
  • CMYK29, 16, 0, 61
  • CSSrgb(27, 60, 100)
  • HSL213°, 57%, 25%
  • HSL Precise212.877°, 57.48%, 24.902%
  • HSV213°, 73%, 39%
  • HSB213°, 73%, 39%
  • Normalized R (0.0–1.0)0.106
  • Normalized G (0.0–1.0)0.235
  • Normalized B (0.0–1.0)0.392
  • GLSLvec3(0.106, 0.235, 0.392)
  • GLSL with alphavec4(0.106, 0.235, 0.392, 1.000)
  • HLSL / Metalfloat3(0.106, 0.235, 0.392)
  • Percentage of Red in RGB10.6%
  • Percentage of Green in RGB23.5%
  • Percentage of Blue in RGB39.2%
  • Color FamilyAzure
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID1B3C64
  • DECIMAL ID1784932
  • Name LengthThis color has no name
  • Seen by search & AI crawlers17 times
  • Counting from2025-01-01