#A6251D#A6251D

#A6251D is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.6% C 0.167 H 28.7°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#A6251D
RGB	rgb(166, 37, 29)
HSL	hsl(4, 70%, 38%)
HSV	hsv(4, 83%, 65%)
CMYK	cmyk(0%, 77.7%, 82.5%, 34.9%)
CIE-LAB	lab(36.97, 51.23, 37.48)
CIE-LCH	lch(36.97, 63.48, 36.19°)
OKLab	oklab(47.64% 0.146 0.0801)
OKLCH	oklch(47.64% 0.167 28.7)
XYZ	xyz(16.6113, 9.5215, 2.1253)
Luminance	0.0952 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6251D #1D9EA6

analogous

#A61D59 #A6251D #A6691D

triadic

#A6251D #1DA625 #251DA6

tetradic

#A6251D #59A61D #1D9EA6 #691DA6

square

#A6251D #59A61D #1D9EA6 #691DA6

split-complementary

#A6251D #1DA669 #1D59A6

monochromatic

#3E0E0B #721914 #A6251D #D93127 #E2635B

Accessibility & contrast

On white

7.23

#A6251D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#A6251D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A6251D

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6251D	#FFFFFF	#000000	##FFFFFF
##A6251D	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D451A

Deuteranopia (green-blind)

#6D6116

Tritanopia (blue-blind)

#B70025

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a6251d;
/* rgb */ color: rgb(166, 37, 29);
/* oklch */ color: oklch(47.6% 0.167 28.7);

Tailwind

colors: {
  custom: {
    50: '#ca6b5a',
    500: '#a6251d',
    950: '#000000',
  },
}

SCSS

$custom: #a6251d;
$custom-light: #ca6b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#a6251d",
  "rgb": {
    "r": 166,
    "g": 37,
    "b": 29
  },
  "hsl": {
    "h": 3.504,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.47636,
    "c": 0.16651,
    "h": 28.7
  },
  "luminance": 0.09519
}

Semantic roles & 50–950 ramp

primary

#A6251D

secondary

#59C0C6

accent

#E3ED3B

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A6251D

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

Preview Lab → · Contrast checker → · Palette generator →