#A63A3E#A63A3E

#A63A3E is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.3% C 0.142 H 21.7°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#A63A3E
RGB	rgb(166, 58, 62)
HSL	hsl(358, 48%, 44%)
HSV	hsv(358, 65%, 65%)
CMYK	cmyk(0%, 65.1%, 62.7%, 34.9%)
CIE-LAB	lab(40.38, 44.69, 21.88)
CIE-LCH	lch(40.38, 49.75, 26.08°)
OKLab	oklab(50.33% 0.1322 0.0527)
OKLCH	oklch(50.33% 0.142 21.7)
XYZ	xyz(18.1102, 11.4834, 5.8194)
Luminance	0.1148 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A3E #3AA6A2

analogous

#A63A74 #A63A3E #A66C3A

triadic

#A63A3E #3EA63A #3A3EA6

tetradic

#A63A3E #74A63A #3AA6A2 #6C3AA6

square

#A63A3E #74A63A #3AA6A2 #6C3AA6

split-complementary

#A63A3E #3AA66C #3A74A6

monochromatic

#4B1A1C #792A2D #A63A3E #C5585C #D58689

Accessibility & contrast

On white

6.37

#A63A3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#A63A3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A3E

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A3E	#FFFFFF	#000000	##FFFFFF
##A63A3E	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56513D

Deuteranopia (green-blind)

#71683B

Tritanopia (blue-blind)

#B6233C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a3e;
/* rgb */ color: rgb(166, 58, 62);
/* oklch */ color: oklch(50.3% 0.142 21.7);

Tailwind

colors: {
  custom: {
    50: '#c77673',
    500: '#a63a3e',
    950: '#000000',
  },
}

SCSS

$custom: #a63a3e;
$custom-light: #c77673;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a3e",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 62
  },
  "hsl": {
    "h": 357.778,
    "s": 48.214,
    "l": 43.922
  },
  "oklch": {
    "l": 0.5033,
    "c": 0.14234,
    "h": 21.7
  },
  "luminance": 0.11481
}

Semantic roles & 50–950 ramp

primary

#A63A3E

secondary

#7DBFBC

accent

#D8D350

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140908

muted

#837B7B

Preview Lab

Preview with #A63A3E

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

Preview Lab → · Contrast checker → · Palette generator →