#A63C1D#A63C1D

#A63C1D is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.1% C 0.146 H 36.5°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#A63C1D
RGB	rgb(166, 60, 29)
HSL	hsl(14, 70%, 38%)
HSV	hsv(14, 83%, 65%)
CMYK	cmyk(0%, 63.9%, 82.5%, 34.9%)
CIE-LAB	lab(40.30, 42.15, 40.65)
CIE-LCH	lch(40.30, 58.56, 43.96°)
OKLab	oklab(50.13% 0.1178 0.0871)
OKLCH	oklch(50.13% 0.146 36.5)
XYZ	xyz(17.5655, 11.4299, 2.4434)
Luminance	0.1143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63C1D #1D87A6

analogous

#A61D42 #A63C1D #A6801D

triadic

#A63C1D #1DA63C #3C1DA6

tetradic

#A63C1D #42A61D #1D87A6 #801DA6

square

#A63C1D #42A61D #1D87A6 #801DA6

split-complementary

#A63C1D #1DA680 #1D42A6

monochromatic

#3E160B #722914 #A63C1D #D94F27 #E27A5B

Accessibility & contrast

On white

6.39

#A63C1D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#A63C1D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63C1D

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63C1D	#FFFFFF	#000000	##FFFFFF
##A63C1D	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5018

Deuteranopia (green-blind)

#746818

Tritanopia (blue-blind)

#B71F36

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63c1d;
/* rgb */ color: rgb(166, 60, 29);
/* oklch */ color: oklch(50.1% 0.146 36.5);

Tailwind

colors: {
  custom: {
    50: '#c9765c',
    500: '#a63c1d',
    950: '#000000',
  },
}

SCSS

$custom: #a63c1d;
$custom-light: #c9765c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63c1d",
  "rgb": {
    "r": 166,
    "g": 60,
    "b": 29
  },
  "hsl": {
    "h": 13.577,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.50129,
    "c": 0.14649,
    "h": 36.5
  },
  "luminance": 0.11427
}

Semantic roles & 50–950 ramp

primary

#A63C1D

secondary

#59ADC6

accent

#C5ED3B

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63C1D

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

Preview Lab → · Contrast checker → · Palette generator →