#A63643#A63643

#A63643 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.0% C 0.147 H 17.6°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#A63643
RGB	rgb(166, 54, 67)
HSL	hsl(353, 51%, 43%)
HSV	hsv(353, 67%, 65%)
CMYK	cmyk(0%, 67.5%, 59.6%, 34.9%)
CIE-LAB	lab(39.84, 46.77, 18.06)
CIE-LCH	lch(39.84, 50.14, 21.11°)
OKLab	oklab(49.95% 0.1398 0.0443)
OKLCH	oklch(49.95% 0.147 17.6)
XYZ	xyz(18.0599, 11.1530, 6.5109)
Luminance	0.1115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63643 #36A699

analogous

#A6367B #A63643 #A66136

triadic

#A63643 #43A636 #3643A6

tetradic

#A63643 #7BA636 #36A699 #6136A6

square

#A63643 #7BA636 #36A699 #6136A6

split-complementary

#A63643 #36A661 #367BA6

monochromatic

#4A181E #782730 #A63643 #C75260 #D6818A

Accessibility & contrast

On white

6.50

#A63643 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#A63643 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63643

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63643	#FFFFFF	#000000	##FFFFFF
##A63643	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524F43

Deuteranopia (green-blind)

#6F6740

Tritanopia (blue-blind)

#B61E3B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a63643;
/* rgb */ color: rgb(166, 54, 67);
/* oklch */ color: oklch(50.0% 0.147 17.6);

Tailwind

colors: {
  custom: {
    50: '#c67477',
    500: '#a63643',
    950: '#000000',
  },
}

SCSS

$custom: #a63643;
$custom-light: #c67477;
$custom-dark: #000000;

JSON

{
  "hex": "#a63643",
  "rgb": {
    "r": 166,
    "g": 54,
    "b": 67
  },
  "hsl": {
    "h": 353.036,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49953,
    "c": 0.14661,
    "h": 17.6
  },
  "luminance": 0.11151
}

Semantic roles & 50–950 ramp

primary

#A63643

secondary

#79BFB7

accent

#DACA4D

background

#FDF7F7

surface

#FAEDED

border

#D3C8C8

text

#140908

muted

#837B7B

Preview Lab

Preview with #A63643

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

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