#A63F24#A63F24

#A63F24 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.6% C 0.142 H 35.6°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#A63F24
RGB	rgb(166, 63, 36)
HSL	hsl(12, 64%, 40%)
HSV	hsv(12, 78%, 65%)
CMYK	cmyk(0%, 62%, 78.3%, 34.9%)
CIE-LAB	lab(40.88, 41.00, 37.63)
CIE-LCH	lch(40.88, 55.65, 42.54°)
OKLab	oklab(50.59% 0.1155 0.0827)
OKLCH	oklch(50.59% 0.142 35.6)
XYZ	xyz(17.8238, 11.7919, 3.0062)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F24 #248BA6

analogous

#A6244A #A63F24 #A68024

triadic

#A63F24 #24A63F #3F24A6

tetradic

#A63F24 #4AA624 #248BA6 #8024A6

square

#A63F24 #4AA624 #248BA6 #8024A6

split-complementary

#A63F24 #24A680 #244AA6

monochromatic

#41190E #742C19 #A63F24 #D35534 #DE7F66

Accessibility & contrast

On white

6.25

#A63F24 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#A63F24 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F24

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F24	#FFFFFF	#000000	##FFFFFF
##A63F24	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5220

Deuteranopia (green-blind)

#756920

Tritanopia (blue-blind)

#B72639

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63f24;
/* rgb */ color: rgb(166, 63, 36);
/* oklch */ color: oklch(50.6% 0.142 35.6);

Tailwind

colors: {
  custom: {
    50: '#c87860',
    500: '#a63f24',
    950: '#000000',
  },
}

SCSS

$custom: #a63f24;
$custom-light: #c87860;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f24",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 36
  },
  "hsl": {
    "h": 12.462,
    "s": 64.356,
    "l": 39.608
  },
  "oklch": {
    "l": 0.50592,
    "c": 0.14206,
    "h": 35.6
  },
  "luminance": 0.11789
}

Semantic roles & 50–950 ramp

primary

#A63F24

secondary

#62AFC4

accent

#C5E740

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150905

muted

#837B79

Preview Lab

Preview with #A63F24

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

Preview Lab → · Contrast checker → · Palette generator →