Information about #A21510 color

#A21510 color image

Basic facts about this digital color

#A21510 falls into the Red Color Family — High Saturation, Neutral brightness. Its exact recipe is rgb(162, 21, 16) — 63.5% red, 8.2% green, 6.3% blue — and for print it converts to CMYK 0 / 55 / 57 / 36. Curious how these numbers work? Read our RGB color codes guide.

#A21510 is a strongly colored warm red that holds a balanced mid-tone. It is a natural fit for accents, call-to-action elements and statement visuals. In The Official Register of Color Names it is practically indistinguishable from Spartan Crimson (#9E1316). Its next-closest registered neighbors are Pulse (#A41D19) and Rufous (#A81C07).

Technically, the mix leans on its red channel (rgb(162, 21, 16)), which gives #A21510 its character. Accessibility-wise, white text works best on #A21510: 7.9:1 contrast (passing WCAG AAA) versus 2.7:1 for black. #A21510 has no official name yet. If this shade means something to you, you can be the one to name it.

#A21510 color variations

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

#A21510 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 #A21510

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

Pulse color link
Pulse

#A41D19

Rufous color link
Rufous

#A81C07

Vibrant Ruby color link
Vibrant Ruby

#A7080D

Ruby Red color link
Ruby Red

#9B111E

Red Thread color link
Red Thread

#A81900

Burnt Red color link
Burnt Red

#9F2305

Tabasco color link
Tabasco

#A02712

Tomato Sauce color link
Tomato Sauce

#B21807

Naga Red color link
Naga Red

#AB0707

Conversions between color systems and etc.

  • HEX#A21510
  • RGB162, 21, 16
  • CMYK0, 55, 57, 36
  • CSSrgb(162, 21, 16)
  • HSL2°, 82%, 35%
  • HSL Precise2.055°, 82.022%, 34.902%
  • HSV2°, 90%, 64%
  • HSB2°, 90%, 64%
  • Normalized R (0.0–1.0)0.635
  • Normalized G (0.0–1.0)0.082
  • Normalized B (0.0–1.0)0.063
  • GLSLvec3(0.635, 0.082, 0.063)
  • GLSL with alphavec4(0.635, 0.082, 0.063, 1.000)
  • HLSL / Metalfloat3(0.635, 0.082, 0.063)
  • Percentage of Red in RGB63.5%
  • Percentage of Green in RGB8.2%
  • Percentage of Blue in RGB6.3%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX IDA21510
  • DECIMAL ID10622224
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01