#A63F20#A63F20

#A63F20 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.6% C 0.143 H 36.9°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#A63F20
RGB	rgb(166, 63, 32)
HSL	hsl(14, 68%, 39%)
HSV	hsv(14, 81%, 65%)
CMYK	cmyk(0%, 62%, 80.7%, 34.9%)
CIE-LAB	lab(40.85, 40.86, 39.67)
CIE-LCH	lch(40.85, 56.95, 44.16°)
OKLab	oklab(50.55% 0.1144 0.0859)
OKLCH	oklch(50.55% 0.143 36.9)
XYZ	xyz(17.7660, 11.7688, 2.7023)
Luminance	0.1177 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F20 #2087A6

analogous

#A62044 #A63F20 #A68220

triadic

#A63F20 #20A63F #3F20A6

tetradic

#A63F20 #44A620 #2087A6 #8220A6

square

#A63F20 #44A620 #2087A6 #8220A6

split-complementary

#A63F20 #20A682 #2044A6

monochromatic

#3F180C #732C16 #A63F20 #D6542D #E07E60

Accessibility & contrast

On white

6.26

#A63F20 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#A63F20 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F20

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F20	#FFFFFF	#000000	##FFFFFF
##A63F20	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C521C

Deuteranopia (green-blind)

#76691C

Tritanopia (blue-blind)

#B72539

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63f20;
/* rgb */ color: rgb(166, 63, 32);
/* oklch */ color: oklch(50.6% 0.143 36.9);

Tailwind

colors: {
  custom: {
    50: '#c8785e',
    500: '#a63f20',
    950: '#000000',
  },
}

SCSS

$custom: #a63f20;
$custom-light: #c8785e;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f20",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 32
  },
  "hsl": {
    "h": 13.881,
    "s": 67.677,
    "l": 38.824
  },
  "oklch": {
    "l": 0.50552,
    "c": 0.14303,
    "h": 36.9
  },
  "luminance": 0.11766
}

Semantic roles & 50–950 ramp

primary

#A63F20

secondary

#5DADC5

accent

#C2EB3D

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63F20

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

Preview Lab → · Contrast checker → · Palette generator →