#AD251F#AD251F

#AD251F is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.9% C 0.173 H 28.2°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#AD251F
RGB	rgb(173, 37, 31)
HSL	hsl(3, 70%, 40%)
HSV	hsv(3, 82%, 68%)
CMYK	cmyk(0%, 78.6%, 82.1%, 32.2%)
CIE-LAB	lab(38.39, 53.45, 38.25)
CIE-LCH	lch(38.39, 65.73, 35.59°)
OKLab	oklab(48.95% 0.1526 0.0818)
OKLCH	oklch(48.95% 0.173 28.2)
XYZ	xyz(18.1447, 10.3092, 2.3306)
Luminance	0.1031 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD251F #1FA7AD

analogous

#AD1F60 #AD251F #AD6C1F

triadic

#AD251F #1FAD25 #251FAD

tetradic

#AD251F #60AD1F #1FA7AD #6C1FAD

square

#AD251F #60AD1F #1FA7AD #6C1FAD

split-complementary

#AD251F #1FAD6C #1F60AD

monochromatic

#450F0C #791A16 #AD251F #DA372F #E36963

Accessibility & contrast

On white

6.86

#AD251F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#AD251F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD251F

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD251F	#FFFFFF	#000000	##FFFFFF
##AD251F	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50471C

Deuteranopia (green-blind)

#716518

Tritanopia (blue-blind)

#BF0025

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #ad251f;
/* rgb */ color: rgb(173, 37, 31);
/* oklch */ color: oklch(48.9% 0.173 28.2);

Tailwind

colors: {
  custom: {
    50: '#cf6c5c',
    500: '#ad251f',
    950: '#000000',
  },
}

SCSS

$custom: #ad251f;
$custom-light: #cf6c5c;
$custom-dark: #000000;

JSON

{
  "hex": "#ad251f",
  "rgb": {
    "r": 173,
    "g": 37,
    "b": 31
  },
  "hsl": {
    "h": 2.535,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.4895,
    "c": 0.17312,
    "h": 28.2
  },
  "luminance": 0.10306
}

Semantic roles & 50–950 ramp

primary

#AD251F

secondary

#60C4C8

accent

#E5EC3B

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #AD251F

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

Preview Lab → · Contrast checker → · Palette generator →