#A81F23#A81F23

#A81F23 is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.6% C 0.172 H 25.6°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#A81F23
RGB	rgb(168, 31, 35)
HSL	hsl(358, 69%, 39%)
HSV	hsv(358, 82%, 66%)
CMYK	cmyk(0%, 81.5%, 79.2%, 34.1%)
CIE-LAB	lab(36.80, 53.83, 34.05)
CIE-LCH	lch(36.80, 63.69, 32.32°)
OKLab	oklab(47.6% 0.1552 0.0744)
OKLCH	oklch(47.6% 0.172 25.6)
XYZ	xyz(16.9439, 9.4289, 2.5176)
Luminance	0.0943 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81F23 #1FA8A4

analogous

#A81F68 #A81F23 #A8601F

triadic

#A81F23 #23A81F #1F23A8

tetradic

#A81F23 #68A81F #1FA8A4 #601FA8

square

#A81F23 #68A81F #1FA8A4 #601FA8

split-complementary

#A81F23 #1FA860 #1F68A8

monochromatic

#410C0D #741518 #A81F23 #D82C31 #E26064

Accessibility & contrast

On white

7.28

#A81F23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A81F23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81F23

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81F23	#FFFFFF	#000000	##FFFFFF
##A81F23	1.00	7.28	2.89	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4421

Deuteranopia (green-blind)

#6D611D

Tritanopia (blue-blind)

#B90023

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81f23;
/* rgb */ color: rgb(168, 31, 35);
/* oklch */ color: oklch(47.6% 0.172 25.6);

Tailwind

colors: {
  custom: {
    50: '#cb695e',
    500: '#a81f23',
    950: '#000000',
  },
}

SCSS

$custom: #a81f23;
$custom-light: #cb695e;
$custom-dark: #000000;

JSON

{
  "hex": "#a81f23",
  "rgb": {
    "r": 168,
    "g": 31,
    "b": 35
  },
  "hsl": {
    "h": 358.248,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.47599,
    "c": 0.17212,
    "h": 25.6
  },
  "luminance": 0.09426
}

Semantic roles & 50–950 ramp

primary

#A81F23

secondary

#5DC6C3

accent

#ECE73C

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A81F23

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

Preview Lab → · Contrast checker → · Palette generator →