#A63C1E#A63C1E

#A63C1E is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.1% C 0.146 H 36.2°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#A63C1E
RGB	rgb(166, 60, 30)
HSL	hsl(13, 69%, 38%)
HSV	hsv(13, 82%, 65%)
CMYK	cmyk(0%, 63.9%, 81.9%, 34.9%)
CIE-LAB	lab(40.30, 42.18, 40.16)
CIE-LCH	lch(40.30, 58.24, 43.59°)
OKLab	oklab(50.14% 0.1181 0.0863)
OKLCH	oklch(50.14% 0.146 36.2)
XYZ	xyz(17.5780, 11.4350, 2.5096)
Luminance	0.1143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63C1E #1E88A6

analogous

#A61E44 #A63C1E #A6801E

triadic

#A63C1E #1EA63C #3C1EA6

tetradic

#A63C1E #44A61E #1E88A6 #801EA6

square

#A63C1E #44A61E #1E88A6 #801EA6

split-complementary

#A63C1E #1EA680 #1E44A6

monochromatic

#3E170B #722915 #A63C1E #D85029 #E27A5D

Accessibility & contrast

On white

6.39

#A63C1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#A63C1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63C1E

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63C1E	#FFFFFF	#000000	##FFFFFF
##A63C1E	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)

#5A5019

Deuteranopia (green-blind)

#746819

Tritanopia (blue-blind)

#B72036

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63c1e;
/* rgb */ color: rgb(166, 60, 30);
/* oklch */ color: oklch(50.1% 0.146 36.2);

Tailwind

colors: {
  custom: {
    50: '#c9765c',
    500: '#a63c1e',
    950: '#000000',
  },
}

SCSS

$custom: #a63c1e;
$custom-light: #c9765c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63c1e",
  "rgb": {
    "r": 166,
    "g": 60,
    "b": 30
  },
  "hsl": {
    "h": 13.235,
    "s": 69.388,
    "l": 38.431
  },
  "oklch": {
    "l": 0.50137,
    "c": 0.14627,
    "h": 36.2
  },
  "luminance": 0.11432
}

Semantic roles & 50–950 ramp

primary

#A63C1E

secondary

#5AAEC6

accent

#C5EC3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63C1E

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

Preview Lab → · Contrast checker → · Palette generator →