#A1231E#A1231E

#A1231E is a mid, vivid red. Relative luminance 0.089; OKLCH L 46.5% C 0.163 H 27.9°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#A1231E
RGB	rgb(161, 35, 30)
HSL	hsl(2, 69%, 37%)
HSV	hsv(2, 81%, 63%)
CMYK	cmyk(0%, 78.3%, 81.4%, 36.9%)
CIE-LAB	lab(35.74, 50.35, 35.38)
CIE-LCH	lch(35.74, 61.53, 35.10°)
OKLab	oklab(46.55% 0.144 0.0763)
OKLCH	oklch(46.55% 0.163 27.9)
XYZ	xyz(15.5352, 8.8754, 2.1232)
Luminance	0.0887 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1231E #1E9CA1

analogous

#A11E5B #A1231E #A1641E

triadic

#A1231E #1EA123 #231EA1

tetradic

#A1231E #5BA11E #1E9CA1 #641EA1

square

#A1231E #5BA11E #1E9CA1 #641EA1

split-complementary

#A1231E #1EA164 #1E5BA1

monochromatic

#3A0D0B #6D1814 #A1231E #D52E28 #E05E59

Accessibility & contrast

On white

7.57

#A1231E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#A1231E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A1231E

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1231E	#FFFFFF	#000000	##FFFFFF
##A1231E	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A431C

Deuteranopia (green-blind)

#695E18

Tritanopia (blue-blind)

#B20024

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #a1231e;
/* rgb */ color: rgb(161, 35, 30);
/* oklch */ color: oklch(46.5% 0.163 27.9);

Tailwind

colors: {
  custom: {
    50: '#c6695b',
    500: '#a1231e',
    950: '#000000',
  },
}

SCSS

$custom: #a1231e;
$custom-light: #c6695b;
$custom-dark: #000000;

JSON

{
  "hex": "#a1231e",
  "rgb": {
    "r": 161,
    "g": 35,
    "b": 30
  },
  "hsl": {
    "h": 2.29,
    "s": 68.586,
    "l": 37.451
  },
  "oklch": {
    "l": 0.46547,
    "c": 0.16297,
    "h": 27.9
  },
  "luminance": 0.08873
}

Semantic roles & 50–950 ramp

primary

#A1231E

secondary

#57C0C4

accent

#E5EB3C

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A1231E

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

Preview Lab → · Contrast checker → · Palette generator →