#A81F33#A81F33

#A81F33 is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.8% C 0.171 H 19.6°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#A81F33
RGB	rgb(168, 31, 51)
HSL	hsl(351, 69%, 39%)
HSV	hsv(351, 82%, 66%)
CMYK	cmyk(0%, 81.5%, 69.6%, 34.1%)
CIE-LAB	lab(37.02, 54.50, 24.56)
CIE-LCH	lch(37.02, 59.78, 24.25°)
OKLab	oklab(47.83% 0.161 0.0573)
OKLCH	oklch(47.83% 0.171 19.6)
XYZ	xyz(17.2379, 9.5465, 4.0663)
Luminance	0.0954 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81F33 #1FA894

analogous

#A81F78 #A81F33 #A8501F

triadic

#A81F33 #33A81F #1F33A8

tetradic

#A81F33 #78A81F #1FA894 #501FA8

square

#A81F33 #78A81F #1FA894 #501FA8

split-complementary

#A81F33 #1FA850 #1F78A8

monochromatic

#410C14 #741523 #A81F33 #D82C45 #E26073

Accessibility & contrast

On white

7.22

#A81F33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#A81F33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81F33

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81F33	#FFFFFF	#000000	##FFFFFF
##A81F33	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494533

Deuteranopia (green-blind)

#6B612F

Tritanopia (blue-blind)

#B90028

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81f33;
/* rgb */ color: rgb(168, 31, 51);
/* oklch */ color: oklch(47.8% 0.171 19.6);

Tailwind

colors: {
  custom: {
    50: '#ca6a6a',
    500: '#a81f33',
    950: '#000000',
  },
}

SCSS

$custom: #a81f33;
$custom-light: #ca6a6a;
$custom-dark: #000000;

JSON

{
  "hex": "#a81f33",
  "rgb": {
    "r": 168,
    "g": 31,
    "b": 51
  },
  "hsl": {
    "h": 351.241,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.47831,
    "c": 0.17086,
    "h": 19.6
  },
  "luminance": 0.09544
}

Semantic roles & 50–950 ramp

primary

#A81F33

secondary

#5DC6B7

accent

#ECD23C

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#150706

muted

#837A7A

Preview Lab

Preview with #A81F33

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →