#A1181E#A1181E

#A1181E is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.7% C 0.171 H 25.7°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#A1181E
RGB	rgb(161, 24, 30)
HSL	hsl(357, 74%, 36%)
HSV	hsv(357, 85%, 63%)
CMYK	cmyk(0%, 85.1%, 81.4%, 36.9%)
CIE-LAB	lab(34.65, 53.42, 34.29)
CIE-LCH	lch(34.65, 63.48, 32.69°)
OKLab	oklab(45.74% 0.1537 0.0739)
OKLCH	oklch(45.74% 0.171 25.7)
XYZ	xyz(15.2608, 8.3266, 2.0317)
Luminance	0.0832 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1181E #18A19B

analogous

#A11863 #A1181E #A15718

triadic

#A1181E #1EA118 #181EA1

tetradic

#A1181E #63A118 #18A19B #5718A1

square

#A1181E #63A118 #18A19B #5718A1

split-complementary

#A1181E #18A157 #1863A1

monochromatic

#36080A #6C1014 #A1181E #D62028 #E54F55

Accessibility & contrast

On white

7.88

#A1181E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#A1181E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A1181E

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1181E	#FFFFFF	#000000	##FFFFFF
##A1181E	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463F1C

Deuteranopia (green-blind)

#675C17

Tritanopia (blue-blind)

#B2001D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a1181e;
/* rgb */ color: rgb(161, 24, 30);
/* oklch */ color: oklch(45.7% 0.171 25.7);

Tailwind

colors: {
  custom: {
    50: '#c6665a',
    500: '#a1181e',
    950: '#000000',
  },
}

SCSS

$custom: #a1181e;
$custom-light: #c6665a;
$custom-dark: #000000;

JSON

{
  "hex": "#a1181e",
  "rgb": {
    "r": 161,
    "g": 24,
    "b": 30
  },
  "hsl": {
    "h": 357.372,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.45738,
    "c": 0.17053,
    "h": 25.7
  },
  "luminance": 0.08324
}

Semantic roles & 50–950 ramp

primary

#A1181E

secondary

#4EC7C2

accent

#F1E937

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A1181E

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

Preview Lab → · Contrast checker → · Palette generator →