#A63D1C#A63D1C

#A63D1C is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.3% C 0.146 H 37.2°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#A63D1C
RGB	rgb(166, 61, 28)
HSL	hsl(14, 71%, 38%)
HSV	hsv(14, 83%, 65%)
CMYK	cmyk(0%, 63.3%, 83.1%, 34.9%)
CIE-LAB	lab(40.46, 41.66, 41.29)
CIE-LCH	lch(40.46, 58.66, 44.75°)
OKLab	oklab(50.25% 0.1161 0.0881)
OKLCH	oklch(50.25% 0.146 37.2)
XYZ	xyz(17.6062, 11.5308, 2.3970)
Luminance	0.1153 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63D1C #1C85A6

analogous

#A61C40 #A63D1C #A6821C

triadic

#A63D1C #1CA63D #3D1CA6

tetradic

#A63D1C #40A61C #1C85A6 #821CA6

square

#A63D1C #40A61C #1C85A6 #821CA6

split-complementary

#A63D1C #1CA682 #1C40A6

monochromatic

#3D170A #722A13 #A63D1C #DA5025 #E37A59

Accessibility & contrast

On white

6.35

#A63D1C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#A63D1C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63D1C

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63D1C	#FFFFFF	#000000	##FFFFFF
##A63D1C	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5117

Deuteranopia (green-blind)

#756817

Tritanopia (blue-blind)

#B72137

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63d1c;
/* rgb */ color: rgb(166, 61, 28);
/* oklch */ color: oklch(50.3% 0.146 37.2);

Tailwind

colors: {
  custom: {
    50: '#c9775b',
    500: '#a63d1c',
    950: '#000000',
  },
}

SCSS

$custom: #a63d1c;
$custom-light: #c9775b;
$custom-dark: #000000;

JSON

{
  "hex": "#a63d1c",
  "rgb": {
    "r": 166,
    "g": 61,
    "b": 28
  },
  "hsl": {
    "h": 14.348,
    "s": 71.134,
    "l": 38.039
  },
  "oklch": {
    "l": 0.50251,
    "c": 0.14578,
    "h": 37.2
  },
  "luminance": 0.11528
}

Semantic roles & 50–950 ramp

primary

#A63D1C

secondary

#57ACC7

accent

#C3EE3A

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63D1C

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

Preview Lab → · Contrast checker → · Palette generator →