#AC251D#AC251D

#AC251D is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.7% C 0.172 H 28.7°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#AC251D
RGB	rgb(172, 37, 29)
HSL	hsl(3, 71%, 39%)
HSV	hsv(3, 83%, 67%)
CMYK	cmyk(0%, 78.5%, 83.1%, 32.5%)
CIE-LAB	lab(38.17, 53.09, 39.05)
CIE-LCH	lch(38.17, 65.90, 36.34°)
OKLab	oklab(48.75% 0.1512 0.0829)
OKLCH	oklch(48.75% 0.172 28.7)
XYZ	xyz(17.8988, 10.1854, 2.1857)
Luminance	0.1018 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC251D #1DA4AC

analogous

#AC1D5C #AC251D #AC6D1D

triadic

#AC251D #1DAC25 #251DAC

tetradic

#AC251D #5CAC1D #1DA4AC #6D1DAC

square

#AC251D #5CAC1D #1DA4AC #6D1DAC

split-complementary

#AC251D #1DAC6D #1D5CAC

monochromatic

#430E0B #781A14 #AC251D #DB352B #E4675F

Accessibility & contrast

On white

6.92

#AC251D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#AC251D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC251D

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC251D	#FFFFFF	#000000	##FFFFFF
##AC251D	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50471A

Deuteranopia (green-blind)

#716416

Tritanopia (blue-blind)

#BE0025

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #ac251d;
/* rgb */ color: rgb(172, 37, 29);
/* oklch */ color: oklch(48.7% 0.172 28.7);

Tailwind

colors: {
  custom: {
    50: '#ce6c5b',
    500: '#ac251d',
    950: '#000000',
  },
}

SCSS

$custom: #ac251d;
$custom-light: #ce6c5b;
$custom-dark: #000000;

JSON

{
  "hex": "#ac251d",
  "rgb": {
    "r": 172,
    "g": 37,
    "b": 29
  },
  "hsl": {
    "h": 3.357,
    "s": 71.144,
    "l": 39.412
  },
  "oklch": {
    "l": 0.48746,
    "c": 0.1724,
    "h": 28.7
  },
  "luminance": 0.10183
}

Semantic roles & 50–950 ramp

primary

#AC251D

secondary

#5CC2C8

accent

#E4EE3A

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #AC251D

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

Preview Lab → · Contrast checker → · Palette generator →