#A1231F#A1231F

#A1231F is a mid, vivid red. Relative luminance 0.089; OKLCH L 46.6% C 0.163 H 27.6°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#A1231F
RGB	rgb(161, 35, 31)
HSL	hsl(2, 68%, 38%)
HSV	hsv(2, 81%, 63%)
CMYK	cmyk(0%, 78.3%, 80.7%, 36.9%)
CIE-LAB	lab(35.75, 50.38, 34.83)
CIE-LCH	lch(35.75, 61.25, 34.66°)
OKLab	oklab(46.56% 0.1443 0.0754)
OKLCH	oklch(46.56% 0.163 27.6)
XYZ	xyz(15.5482, 8.8805, 2.1915)
Luminance	0.0888 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1231F #1F9DA1

analogous

#A11F5C #A1231F #A1641F

triadic

#A1231F #1FA123 #231FA1

tetradic

#A1231F #5CA11F #1F9DA1 #641FA1

square

#A1231F #5CA11F #1F9DA1 #641FA1

split-complementary

#A1231F #1FA164 #1F5CA1

monochromatic

#3A0D0B #6E1815 #A1231F #D42E29 #DF5F5B

Accessibility & contrast

On white

7.57

#A1231F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#A1231F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A1231F

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1231F	#FFFFFF	#000000	##FFFFFF
##A1231F	1.00	7.57	2.78	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A431D

Deuteranopia (green-blind)

#695E19

Tritanopia (blue-blind)

#B20024

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #a1231f;
/* rgb */ color: rgb(161, 35, 31);
/* oklch */ color: oklch(46.6% 0.163 27.6);

Tailwind

colors: {
  custom: {
    50: '#c6695b',
    500: '#a1231f',
    950: '#000000',
  },
}

SCSS

$custom: #a1231f;
$custom-light: #c6695b;
$custom-dark: #000000;

JSON

{
  "hex": "#a1231f",
  "rgb": {
    "r": 161,
    "g": 35,
    "b": 31
  },
  "hsl": {
    "h": 1.846,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.46558,
    "c": 0.16284,
    "h": 27.6
  },
  "luminance": 0.08878
}

Semantic roles & 50–950 ramp

primary

#A1231F

secondary

#58C0C4

accent

#E5EB3D

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A1231F

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

Preview Lab → · Contrast checker → · Palette generator →