#B63640#B63640

#B63640 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.6% C 0.164 H 20.6°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B63640
RGB	rgb(182, 54, 64)
HSL	hsl(355, 54%, 46%)
HSV	hsv(355, 70%, 71%)
CMYK	cmyk(0%, 70.3%, 64.8%, 28.6%)
CIE-LAB	lab(42.70, 51.82, 24.19)
CIE-LCH	lch(42.70, 57.19, 25.02°)
OKLab	oklab(52.61% 0.1533 0.0576)
OKLCH	oklch(52.61% 0.164 20.6)
XYZ	xyz(21.5382, 12.9567, 6.2163)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63640 #36B6AC

analogous

#B63680 #B63640 #B66C36

triadic

#B63640 #40B636 #3640B6

tetradic

#B63640 #80B636 #36B6AC #6C36B6

square

#B63640 #80B636 #36B6AC #6C36B6

split-complementary

#B63640 #36B66C #3680B6

monochromatic

#581A1F #87282F #B63640 #CE5B64 #DC8A91

Accessibility & contrast

On white

5.85

#B63640 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B63640 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63640

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63640	#FFFFFF	#000000	##FFFFFF
##B63640	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543F

Deuteranopia (green-blind)

#796F3C

Tritanopia (blue-blind)

#C8103B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b63640;
/* rgb */ color: rgb(182, 54, 64);
/* oklch */ color: oklch(52.6% 0.164 20.6);

Tailwind

colors: {
  custom: {
    50: '#d37674',
    500: '#b63640',
    950: '#000000',
  },
}

SCSS

$custom: #b63640;
$custom-light: #d37674;
$custom-dark: #000000;

JSON

{
  "hex": "#b63640",
  "rgb": {
    "r": 182,
    "g": 54,
    "b": 64
  },
  "hsl": {
    "h": 355.313,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52611,
    "c": 0.16379,
    "h": 20.6
  },
  "luminance": 0.12954
}

Semantic roles & 50–950 ramp

primary

#B63640

secondary

#81C6C1

accent

#DED24A

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63640

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

Preview Lab → · Contrast checker → · Palette generator →