#A63E28#A63E28

#A63E28 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.142 H 33.6°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#A63E28
RGB	rgb(166, 62, 40)
HSL	hsl(10, 61%, 40%)
HSV	hsv(10, 76%, 65%)
CMYK	cmyk(0%, 62.7%, 75.9%, 34.9%)
CIE-LAB	lab(40.75, 41.64, 35.31)
CIE-LCH	lch(40.75, 54.60, 40.30°)
OKLab	oklab(50.5% 0.1183 0.0787)
OKLCH	oklch(50.5% 0.142 33.6)
XYZ	xyz(17.8334, 11.7079, 3.3279)
Luminance	0.1171 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E28 #2890A6

analogous

#A62851 #A63E28 #A67D28

triadic

#A63E28 #28A63E #3E28A6

tetradic

#A63E28 #51A628 #2890A6 #7D28A6

square

#A63E28 #51A628 #2890A6 #7D28A6

split-complementary

#A63E28 #28A67D #2851A6

monochromatic

#431910 #752C1C #A63E28 #D0553B #DC806D

Accessibility & contrast

On white

6.29

#A63E28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#A63E28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E28

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E28	#FFFFFF	#000000	##FFFFFF
##A63E28	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5225

Deuteranopia (green-blind)

#756925

Tritanopia (blue-blind)

#B72539

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e28;
/* rgb */ color: rgb(166, 62, 40);
/* oklch */ color: oklch(50.5% 0.142 33.6);

Tailwind

colors: {
  custom: {
    50: '#c87863',
    500: '#a63e28',
    950: '#000000',
  },
}

SCSS

$custom: #a63e28;
$custom-light: #c87863;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e28",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 40
  },
  "hsl": {
    "h": 10.476,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50503,
    "c": 0.14207,
    "h": 33.6
  },
  "luminance": 0.11705
}

Semantic roles & 50–950 ramp

primary

#A63E28

secondary

#67B2C2

accent

#C8E444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140905

muted

#837B79

Preview Lab

Preview with #A63E28

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

Preview Lab → · Contrast checker → · Palette generator →