Information about #173B58 color

#173B58 color image

Basic facts about this digital color

#173B58 falls into the Azure Color Family — Moderate Saturation, Dark brightness. Its exact recipe is rgb(23, 59, 88) — 9% red, 23.1% green, 34.5% blue — and for print it converts to CMYK 25 / 11 / 0 / 65. New to color codes? See our guide to RGB color codes.

The color #173B58 reads as a confidently colored steel-blue azure and carries a shadowy depth. Designers typically reach for tones like this for moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is a hair away from Nationalist Blue (#174358). Nearby in the Register you will also find Cello (#1E385B) and Regal Blue (#203F58).

In RGB terms — rgb(23, 59, 88) — the blue channel does the heavy lifting here. On this background, white text reaches a 11.6:1 contrast ratio (passing WCAG AAA); black stays at 1.8:1. On paper it relies strongly on black ink (K:65), so proof dark layouts before a large print run. No one has named #173B58 so far. Register a name for it and it becomes a permanent record.

#173B58 color variations

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

#173B58 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 #173B58

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

Cello color link
Cello

#1E385B

Regal Blue color link
Regal Blue

#203F58

Barometer color link
Barometer

#11394C

Shipshape color link
Shipshape

#21425F

Biscay color link
Biscay

#1B3162

Delft Blue color link
Delft Blue

#1F305E

Apollo Blue color link
Apollo Blue

#163968

Conversions between color systems and etc.

  • HEX#173B58
  • RGB23, 59, 88
  • CMYK25, 11, 0, 65
  • CSSrgb(23, 59, 88)
  • HSL207°, 59%, 22%
  • HSL Precise206.769°, 58.559%, 21.765%
  • HSV207°, 74%, 35%
  • HSB207°, 74%, 35%
  • Normalized R (0.0–1.0)0.090
  • Normalized G (0.0–1.0)0.231
  • Normalized B (0.0–1.0)0.345
  • GLSLvec3(0.090, 0.231, 0.345)
  • GLSL with alphavec4(0.090, 0.231, 0.345, 1.000)
  • HLSL / Metalfloat3(0.090, 0.231, 0.345)
  • Percentage of Red in RGB9%
  • Percentage of Green in RGB23.1%
  • Percentage of Blue in RGB34.5%
  • Color FamilyAzure
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID173B58
  • DECIMAL ID1522520
  • Name LengthThis color has no name
  • Seen by search & AI crawlers11 times
  • Counting from2025-01-01