Information about #F51731 color

#F51731 color image

Basic facts about this digital color

The digital color #F51731 is classified in the Register under the Red Color Family, with Full Saturation and Light brightness. In numbers: rgb(245, 23, 49) (96.1% red, 9% green, 19.2% blue), or CMYK 0 / 87 / 77 / 4 for print. New to color codes? See our guide to RGB color codes.

The color #F51731 reads as a maximally vivid red and sits on the lighter side of the spectrum. Designers typically reach for tones like this for bold branding moments and attention-grabbing details. In The Official Register of Color Names it is very close to Opera Red (#FF1B2D). Nearby in the Register you will also find Tractor Red (#FD0E35) and Sprint Red (#EC2131).

In RGB terms — rgb(245, 23, 49) — the red channel does the heavy lifting here. If you plan to put text on a #F51731 background, choose black — the contrast ratio is 5.0:1 (passing WCAG AA), while white manages only 4.2:1. #F51731 has no official name yet. If this shade means something to you, you can be the one to name it.

#F51731 color variations

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

#F51731 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 #F51731

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

Opera Red color link
Opera Red

#FF1B2D

Tractor Red color link
Tractor Red

#FD0E35

Sprint Red color link
Sprint Red

#EC2131

Phillies Red color link
Phillies Red

#E81828

Chiefs Red color link
Chiefs Red

#E31837

Husker Red color link
Husker Red

#E41C38

Vibrant Red color link
Vibrant Red

#FF272A

Red Ribbon color link
Red Ribbon

#ED0A3F

Neon Red color link
Neon Red

#FF073A

Conversions between color systems and etc.

  • HEX#F51731
  • RGB245, 23, 49
  • CMYK0, 87, 77, 4
  • CSSrgb(245, 23, 49)
  • HSL353°, 92%, 53%
  • HSL Precise352.973°, 91.736%, 52.549%
  • HSV353°, 91%, 96%
  • HSB353°, 91%, 96%
  • Normalized R (0.0–1.0)0.961
  • Normalized G (0.0–1.0)0.090
  • Normalized B (0.0–1.0)0.192
  • GLSLvec3(0.961, 0.090, 0.192)
  • GLSL with alphavec4(0.961, 0.090, 0.192, 1.000)
  • HLSL / Metalfloat3(0.961, 0.090, 0.192)
  • Percentage of Red in RGB96.1%
  • Percentage of Green in RGB9%
  • Percentage of Blue in RGB19.2%
  • Color FamilyRed
  • Saturation FamilyFull Saturation
  • Lightness FamilyLight
  • HEX IDF51731
  • DECIMAL ID16062257
  • Name LengthThis color has no name
  • Seen by search & AI crawlers20 times
  • Counting from2025-01-01