#A11737#A11737

#A11737 is a mid, vivid red. Relative luminance 0.085; OKLCH L 46.1% C 0.170 H 15.6°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#A11737
RGB	rgb(161, 23, 55)
HSL	hsl(346, 75%, 36%)
HSV	hsv(346, 86%, 63%)
CMYK	cmyk(0%, 85.7%, 65.8%, 36.9%)
CIE-LAB	lab(34.94, 54.75, 19.08)
CIE-LCH	lch(34.94, 57.98, 19.21°)
OKLab	oklab(46.07% 0.1637 0.0457)
OKLCH	oklch(46.07% 0.17 15.6)
XYZ	xyz(15.6957, 8.4682, 4.4218)
Luminance	0.0847 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11737 #17A181

analogous

#A1177C #A11737 #A13C17

triadic

#A11737 #37A117 #1737A1

tetradic

#A11737 #7CA117 #17A181 #3C17A1

square

#A11737 #7CA117 #17A181 #3C17A1

split-complementary

#A11737 #17A13C #177CA1

monochromatic

#360812 #6B0F25 #A11737 #D71F49 #E64D70

Accessibility & contrast

On white

7.80

#A11737 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#A11737 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11737

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11737	#FFFFFF	#000000	##FFFFFF
##A11737	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434037

Deuteranopia (green-blind)

#655C33

Tritanopia (blue-blind)

#B10026

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a11737;
/* rgb */ color: rgb(161, 23, 55);
/* oklch */ color: oklch(46.1% 0.170 15.6);

Tailwind

colors: {
  custom: {
    50: '#c5666d',
    500: '#a11737',
    950: '#000000',
  },
}

SCSS

$custom: #a11737;
$custom-light: #c5666d;
$custom-dark: #000000;

JSON

{
  "hex": "#a11737",
  "rgb": {
    "r": 161,
    "g": 23,
    "b": 55
  },
  "hsl": {
    "h": 346.087,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.46067,
    "c": 0.16993,
    "h": 15.6
  },
  "luminance": 0.08466
}

Semantic roles & 50–950 ramp

primary

#A11737

secondary

#4CC7AB

accent

#F2C636

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A11737

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

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