#A63A20#A63A20

#A63A20 is a mid, vivid red. Relative luminance 0.112; OKLCH L 49.9% C 0.148 H 34.7°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#A63A20
RGB	rgb(166, 58, 32)
HSL	hsl(12, 68%, 39%)
HSV	hsv(12, 81%, 65%)
CMYK	cmyk(0%, 65.1%, 80.7%, 34.9%)
CIE-LAB	lab(39.98, 43.16, 38.82)
CIE-LCH	lch(39.98, 58.05, 41.97°)
OKLab	oklab(49.9% 0.1215 0.0841)
OKLCH	oklch(49.9% 0.148 34.7)
XYZ	xyz(17.5016, 11.2399, 2.6142)
Luminance	0.1124 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A20 #208CA6

analogous

#A62049 #A63A20 #A67D20

triadic

#A63A20 #20A63A #3A20A6

tetradic

#A63A20 #49A620 #208CA6 #7D20A6

square

#A63A20 #49A620 #208CA6 #7D20A6

split-complementary

#A63A20 #20A67D #2049A6

monochromatic

#3F160C #732816 #A63A20 #D64E2D #E07960

Accessibility & contrast

On white

6.47

#A63A20 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#A63A20 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A20

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A20	#FFFFFF	#000000	##FFFFFF
##A63A20	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)

#594F1C

Deuteranopia (green-blind)

#74671C

Tritanopia (blue-blind)

#B71C35

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a63a20;
/* rgb */ color: rgb(166, 58, 32);
/* oklch */ color: oklch(49.9% 0.148 34.7);

Tailwind

colors: {
  custom: {
    50: '#c9755d',
    500: '#a63a20',
    950: '#000000',
  },
}

SCSS

$custom: #a63a20;
$custom-light: #c9755d;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a20",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 32
  },
  "hsl": {
    "h": 11.642,
    "s": 67.677,
    "l": 38.824
  },
  "oklch": {
    "l": 0.499,
    "c": 0.1477,
    "h": 34.7
  },
  "luminance": 0.11237
}

Semantic roles & 50–950 ramp

primary

#A63A20

secondary

#5DB1C5

accent

#C9EB3D

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63A20

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

Preview Lab → · Contrast checker → · Palette generator →