#A63336#A63336

#A63336 is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.4% C 0.151 H 23.2°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#A63336
RGB	rgb(166, 51, 54)
HSL	hsl(358, 53%, 43%)
HSV	hsv(358, 69%, 65%)
CMYK	cmyk(0%, 69.3%, 67.5%, 34.9%)
CIE-LAB	lab(39.15, 47.17, 25.23)
CIE-LCH	lch(39.15, 53.50, 28.14°)
OKLab	oklab(49.36% 0.1385 0.0593)
OKLCH	oklch(49.36% 0.151 23.2)
XYZ	xyz(17.5774, 10.7435, 4.6375)
Luminance	0.1074 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63336 #33A6A3

analogous

#A6336F #A63336 #A66A33

triadic

#A63336 #36A633 #3336A6

tetradic

#A63336 #6FA633 #33A6A3 #6A33A6

square

#A63336 #6FA633 #33A6A3 #6A33A6

split-complementary

#A63336 #33A66A #336FA6

monochromatic

#481618 #772527 #A63336 #C94E51 #D77C7F

Accessibility & contrast

On white

6.67

#A63336 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#A63336 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63336

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63336	#FFFFFF	#000000	##FFFFFF
##A63336	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524D35

Deuteranopia (green-blind)

#6F6533

Tritanopia (blue-blind)

#B61335

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a63336;
/* rgb */ color: rgb(166, 51, 54);
/* oklch */ color: oklch(49.4% 0.151 23.2);

Tailwind

colors: {
  custom: {
    50: '#c7726d',
    500: '#a63336',
    950: '#000000',
  },
}

SCSS

$custom: #a63336;
$custom-light: #c7726d;
$custom-dark: #000000;

JSON

{
  "hex": "#a63336",
  "rgb": {
    "r": 166,
    "g": 51,
    "b": 54
  },
  "hsl": {
    "h": 358.435,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4936,
    "c": 0.15069,
    "h": 23.2
  },
  "luminance": 0.10741
}

Semantic roles & 50–950 ramp

primary

#A63336

secondary

#75C0BE

accent

#DCD94B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A63336

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

Preview Lab → · Contrast checker → · Palette generator →