#A63A2D#A63A2D

#A63A2D is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.1% C 0.145 H 29.9°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#A63A2D
RGB	rgb(166, 58, 45)
HSL	hsl(6, 57%, 41%)
HSV	hsv(6, 73%, 65%)
CMYK	cmyk(0%, 65.1%, 72.9%, 34.9%)
CIE-LAB	lab(40.12, 43.70, 31.78)
CIE-LCH	lch(40.12, 54.03, 36.03°)
OKLab	oklab(50.05% 0.1257 0.0722)
OKLCH	oklch(50.05% 0.145 29.9)
XYZ	xyz(17.7145, 11.3251, 3.7353)
Luminance	0.1132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A2D #2D99A6

analogous

#A62D5D #A63A2D #A6772D

triadic

#A63A2D #2DA63A #3A2DA6

tetradic

#A63A2D #5DA62D #2D99A6 #772DA6

square

#A63A2D #5DA62D #2D99A6 #772DA6

split-complementary

#A63A2D #2DA677 #2D5DA6

monochromatic

#461813 #762920 #A63A2D #CC5344 #D97F74

Accessibility & contrast

On white

6.43

#A63A2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#A63A2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A2D

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A2D	#FFFFFF	#000000	##FFFFFF
##A63A2D	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502B

Deuteranopia (green-blind)

#73672A

Tritanopia (blue-blind)

#B71F38

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a2d;
/* rgb */ color: rgb(166, 58, 45);
/* oklch */ color: oklch(50.1% 0.145 29.9);

Tailwind

colors: {
  custom: {
    50: '#c87666',
    500: '#a63a2d',
    950: '#000000',
  },
}

SCSS

$custom: #a63a2d;
$custom-light: #c87666;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a2d",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 45
  },
  "hsl": {
    "h": 6.446,
    "s": 57.346,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50051,
    "c": 0.14495,
    "h": 29.9
  },
  "luminance": 0.11323
}

Semantic roles & 50–950 ramp

primary

#A63A2D

secondary

#6EB8C1

accent

#D0E147

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63A2D

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

Preview Lab → · Contrast checker → · Palette generator →