#A63139#A63139

#A63139 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.2% C 0.152 H 21.1°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#A63139
RGB	rgb(166, 49, 57)
HSL	hsl(356, 54%, 42%)
HSV	hsv(356, 70%, 65%)
CMYK	cmyk(0%, 70.5%, 65.7%, 34.9%)
CIE-LAB	lab(38.90, 48.15, 23.08)
CIE-LCH	lch(38.90, 53.40, 25.61°)
OKLab	oklab(49.19% 0.1423 0.0549)
OKLCH	oklch(49.19% 0.152 21.1)
XYZ	xyz(17.5645, 10.6016, 4.9915)
Luminance	0.1060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63139 #31A69E

analogous

#A63174 #A63139 #A66331

triadic

#A63139 #39A631 #3139A6

tetradic

#A63139 #74A631 #31A69E #6331A6

square

#A63139 #74A631 #31A69E #6331A6

split-complementary

#A63139 #31A663 #3174A6

monochromatic

#471519 #772329 #A63139 #CA4A53 #D87A80

Accessibility & contrast

On white

6.73

#A63139 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A63139 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63139

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63139	#FFFFFF	#000000	##FFFFFF
##A63139	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514C38

Deuteranopia (green-blind)

#6E6536

Tritanopia (blue-blind)

#B60F35

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a63139;
/* rgb */ color: rgb(166, 49, 57);
/* oklch */ color: oklch(49.2% 0.152 21.1);

Tailwind

colors: {
  custom: {
    50: '#c7716f',
    500: '#a63139',
    950: '#000000',
  },
}

SCSS

$custom: #a63139;
$custom-light: #c7716f;
$custom-dark: #000000;

JSON

{
  "hex": "#a63139",
  "rgb": {
    "r": 166,
    "g": 49,
    "b": 57
  },
  "hsl": {
    "h": 355.897,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.49194,
    "c": 0.15248,
    "h": 21.1
  },
  "luminance": 0.10599
}

Semantic roles & 50–950 ramp

primary

#A63139

secondary

#73C0BB

accent

#DED44A

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A63139

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

Preview Lab → · Contrast checker → · Palette generator →