#A63A2E#A63A2E

#A63A2E is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.1% C 0.145 H 29.4°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#A63A2E
RGB	rgb(166, 58, 46)
HSL	hsl(6, 57%, 42%)
HSV	hsv(6, 72%, 65%)
CMYK	cmyk(0%, 65.1%, 72.3%, 34.9%)
CIE-LAB	lab(40.14, 43.75, 31.21)
CIE-LCH	lch(40.14, 53.74, 35.51°)
OKLab	oklab(50.07% 0.1261 0.0711)
OKLCH	oklch(50.07% 0.145 29.4)
XYZ	xyz(17.7340, 11.3329, 3.8379)
Luminance	0.1133 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A2E #2E9AA6

analogous

#A62E5E #A63A2E #A6762E

triadic

#A63A2E #2EA63A #3A2EA6

tetradic

#A63A2E #5EA62E #2E9AA6 #762EA6

square

#A63A2E #5EA62E #2E9AA6 #762EA6

split-complementary

#A63A2E #2EA676 #2E5EA6

monochromatic

#461913 #762921 #A63A2E #CC5346 #D97F76

Accessibility & contrast

On white

6.43

#A63A2E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#A63A2E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A2E

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A2E	#FFFFFF	#000000	##FFFFFF
##A63A2E	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502C

Deuteranopia (green-blind)

#73672B

Tritanopia (blue-blind)

#B61F38

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a2e;
/* rgb */ color: rgb(166, 58, 46);
/* oklch */ color: oklch(50.1% 0.145 29.4);

Tailwind

colors: {
  custom: {
    50: '#c87667',
    500: '#a63a2e',
    950: '#000000',
  },
}

SCSS

$custom: #a63a2e;
$custom-light: #c87667;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a2e",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 46
  },
  "hsl": {
    "h": 6,
    "s": 56.604,
    "l": 41.569
  },
  "oklch": {
    "l": 0.50065,
    "c": 0.14475,
    "h": 29.4
  },
  "luminance": 0.1133
}

Semantic roles & 50–950 ramp

primary

#A63A2E

secondary

#6FB9C1

accent

#D1E048

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63A2E

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

Preview Lab → · Contrast checker → · Palette generator →