#A63C22#A63C22

#A63C22 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.2% C 0.145 H 34.9°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#A63C22
RGB	rgb(166, 60, 34)
HSL	hsl(12, 66%, 39%)
HSV	hsv(12, 80%, 65%)
CMYK	cmyk(0%, 63.9%, 79.5%, 34.9%)
CIE-LAB	lab(40.34, 42.32, 38.13)
CIE-LCH	lch(40.34, 56.97, 42.02°)
OKLab	oklab(50.18% 0.1192 0.0832)
OKLCH	oklch(50.18% 0.145 34.9)
XYZ	xyz(17.6324, 11.4567, 2.7960)
Luminance	0.1145 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63C22 #228CA6

analogous

#A6224A #A63C22 #A67E22

triadic

#A63C22 #22A63C #3C22A6

tetradic

#A63C22 #4AA622 #228CA6 #7E22A6

square

#A63C22 #4AA622 #228CA6 #7E22A6

split-complementary

#A63C22 #22A67E #224AA6

monochromatic

#40170D #732A18 #A63C22 #D55130 #DF7C63

Accessibility & contrast

On white

6.38

#A63C22 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#A63C22 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63C22

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63C22	#FFFFFF	#000000	##FFFFFF
##A63C22	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A501E

Deuteranopia (green-blind)

#74681E

Tritanopia (blue-blind)

#B72037

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63c22;
/* rgb */ color: rgb(166, 60, 34);
/* oklch */ color: oklch(50.2% 0.145 34.9);

Tailwind

colors: {
  custom: {
    50: '#c8765f',
    500: '#a63c22',
    950: '#000000',
  },
}

SCSS

$custom: #a63c22;
$custom-light: #c8765f;
$custom-dark: #000000;

JSON

{
  "hex": "#a63c22",
  "rgb": {
    "r": 166,
    "g": 60,
    "b": 34
  },
  "hsl": {
    "h": 11.818,
    "s": 66,
    "l": 39.216
  },
  "oklch": {
    "l": 0.50176,
    "c": 0.14538,
    "h": 34.9
  },
  "luminance": 0.11454
}

Semantic roles & 50–950 ramp

primary

#A63C22

secondary

#5FB0C4

accent

#C7E93F

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63C22

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

Preview Lab → · Contrast checker → · Palette generator →