#a31b21 Color Information

In a RGB color space, hex #a31b21 is composed of 63.9% red, 10.6% green and 12.9% blue. Whereas in a CMYK color space, it is composed of 0% cyan, 83.4% magenta, 79.8% yellow and 36.1% black. It has a hue angle of 357.4 degrees, a saturation of 71.6% and a lightness of 37.3%. #a31b21 color hex could be obtained by blending #ff3642 with #470000. Closest websafe color is: #993333.

    • R 64
    • G 11
    • B 13
    RGB color chart
    • C 0
    • M 83
    • Y 80
    • K 36
    CMYK color chart

#a31b21 color description : Dark red.

#a31b21 Color Conversion

The hexadecimal color #a31b21 has RGB values of R:163, G:27, B:33 and CMYK values of C:0, M:0.83, Y:0.8, K:0.36. Its decimal value is 10689313.

Hex triplet a31b21 #a31b21
RGB Decimal 163, 27, 33 rgb(163,27,33)
RGB Percent 63.9, 10.6, 12.9 rgb(63.9%,10.6%,12.9%)
CMYK 0, 83, 80, 36
HSL 357.4°, 71.6, 37.3 hsl(357.4,71.6%,37.3%)
HSV (or HSB) 357.4°, 83.4, 63.9
Web Safe 993333 #993333
CIE-LAB 35.365, 53.356, 33.401
XYZ 15.772, 8.682, 2.284
xyY 0.59, 0.325, 8.682
CIE-LCH 35.365, 62.948, 32.047
CIE-LUV 35.365, 98.787, 19.704
Hunter-Lab 29.466, 43.978, 16.03
Binary 10100011, 00011011, 00100001

Color Schemes with #a31b21

Complementary Color
Analogous Color
Split Complementary Color
Triadic Color
Tetradic Color
Monochromatic Color

Alternatives to #a31b21

Below, you can see some colors close to #a31b21. Having a set of related colors can be useful if you need an inspirational alternative to your original color choice.

Similar Colors

#a31b21 Preview

Text with hexadecimal color #a31b21

This text has a font color of #a31b21.

<span style="color:#a31b21;">Text here</span>
#a31b21 background color

This paragraph has a background color of #a31b21.

<p style="background-color:#a31b21;">Content here</p>
#a31b21 border color

This element has a border color of #a31b21.

<div style="border:1px solid #a31b21;">Content here</div>
CSS codes
.text {color:#a31b21;}
.background {background-color:#a31b21;}
.border {border:1px solid #a31b21;}

Shades and Tints of #a31b21

A shade is achieved by adding black to any pure hue, while a tint is created by mixing white to any pure color. In this example, #0c0202 is the darkest color, while #fefafa is the lightest one.

Shade Color Variation
Tint Color Variation

Tones of #a31b21

A tone is produced by adding gray to any pure hue. In this case, #615d5d is the less saturated color, while #b9050d is the most saturated one.

Tone Color Variation

Color Blindness Simulator

Below, you can see how #a31b21 is perceived by people affected by a color vision deficiency. This can be useful if you need to ensure your color combinations are accessible to color-blind users.

Monochromacy
  • #444444 Achromatopsia 0.005% of the population
  • #573c3d Atypical Achromatopsia 0.001% of the population
Dichromacy
  • #645c3b Protanopia 1% of men
  • #725721 Deuteranopia 1% of men
  • #a72727 Tritanopia 0.001% of the population
Trichromacy
  • #7b4431 Protanomaly 1% of men, 0.01% of women
  • #834121 Deuteranomaly 6% of men, 0.4% of women
  • #a52325 Tritanomaly 0.01% of the population