#A63A1E#A63A1E

#A63A1E is a mid, vivid red. Relative luminance 0.112; OKLCH L 49.9% C 0.148 H 35.3°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#A63A1E
RGB	rgb(166, 58, 30)
HSL	hsl(12, 69%, 38%)
HSV	hsv(12, 82%, 65%)
CMYK	cmyk(0%, 65.1%, 81.9%, 34.9%)
CIE-LAB	lab(39.96, 43.09, 39.83)
CIE-LCH	lch(39.96, 58.68, 42.75°)
OKLab	oklab(49.88% 0.1209 0.0856)
OKLCH	oklch(49.88% 0.148 35.3)
XYZ	xyz(17.4753, 11.2294, 2.4754)
Luminance	0.1123 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A1E #1E8AA6

analogous

#A61E46 #A63A1E #A67E1E

triadic

#A63A1E #1EA63A #3A1EA6

tetradic

#A63A1E #46A61E #1E8AA6 #7E1EA6

square

#A63A1E #46A61E #1E8AA6 #7E1EA6

split-complementary

#A63A1E #1EA67E #1E46A6

monochromatic

#3E160B #722815 #A63A1E #D84D29 #E2785D

Accessibility & contrast

On white

6.47

#A63A1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#A63A1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A1E

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A1E	#FFFFFF	#000000	##FFFFFF
##A63A1E	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F1A

Deuteranopia (green-blind)

#746719

Tritanopia (blue-blind)

#B71C35

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a63a1e;
/* rgb */ color: rgb(166, 58, 30);
/* oklch */ color: oklch(49.9% 0.148 35.3);

Tailwind

colors: {
  custom: {
    50: '#c9755c',
    500: '#a63a1e',
    950: '#000000',
  },
}

SCSS

$custom: #a63a1e;
$custom-light: #c9755c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a1e",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 30
  },
  "hsl": {
    "h": 12.353,
    "s": 69.388,
    "l": 38.431
  },
  "oklch": {
    "l": 0.49882,
    "c": 0.14813,
    "h": 35.3
  },
  "luminance": 0.11227
}

Semantic roles & 50–950 ramp

primary

#A63A1E

secondary

#5AB0C6

accent

#C8EC3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63A1E

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

Preview Lab → · Contrast checker → · Palette generator →