#A11537#A11537

#A11537 is a mid, vivid red. Relative luminance 0.084; OKLCH L 46.0% C 0.171 H 15.3°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#A11537
RGB	rgb(161, 21, 55)
HSL	hsl(345, 77%, 36%)
HSV	hsv(345, 87%, 63%)
CMYK	cmyk(0%, 87%, 65.8%, 36.9%)
CIE-LAB	lab(34.79, 55.19, 18.88)
CIE-LCH	lch(34.79, 58.33, 18.89°)
OKLab	oklab(45.95% 0.1651 0.0453)
OKLCH	oklch(45.95% 0.171 15.3)
XYZ	xyz(15.6574, 8.3917, 4.4090)
Luminance	0.0839 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11537 #15A17F

analogous

#A1157D #A11537 #A13915

triadic

#A11537 #37A115 #1537A1

tetradic

#A11537 #7DA115 #15A17F #3915A1

square

#A11537 #7DA115 #15A17F #3915A1

split-complementary

#A11537 #15A139 #157DA1

monochromatic

#350712 #6B0E25 #A11537 #D71C49 #E74970

Accessibility & contrast

On white

7.84

#A11537 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#A11537 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11537

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11537	#FFFFFF	#000000	##FFFFFF
##A11537	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424037

Deuteranopia (green-blind)

#645C33

Tritanopia (blue-blind)

#B10025

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a11537;
/* rgb */ color: rgb(161, 21, 55);
/* oklch */ color: oklch(46.0% 0.171 15.3);

Tailwind

colors: {
  custom: {
    50: '#c5656d',
    500: '#a11537',
    950: '#000000',
  },
}

SCSS

$custom: #a11537;
$custom-light: #c5656d;
$custom-dark: #000000;

JSON

{
  "hex": "#a11537",
  "rgb": {
    "r": 161,
    "g": 21,
    "b": 55
  },
  "hsl": {
    "h": 345.429,
    "s": 76.923,
    "l": 35.686
  },
  "oklch": {
    "l": 0.45953,
    "c": 0.17119,
    "h": 15.3
  },
  "luminance": 0.08389
}

Semantic roles & 50–950 ramp

primary

#A11537

secondary

#49C8AA

accent

#F3C534

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A11537

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

Preview Lab → · Contrast checker → · Palette generator →