#B63540#B63540

#B63540 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.165 H 20.3°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B63540
RGB	rgb(182, 53, 64)
HSL	hsl(355, 55%, 46%)
HSV	hsv(355, 71%, 71%)
CMYK	cmyk(0%, 70.9%, 64.8%, 28.6%)
CIE-LAB	lab(42.56, 52.21, 24.02)
CIE-LCH	lch(42.56, 57.47, 24.70°)
OKLab	oklab(52.51% 0.1545 0.0572)
OKLCH	oklch(52.51% 0.165 20.3)
XYZ	xyz(21.4922, 12.8646, 6.2009)
Luminance	0.1286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63540 #35B6AB

analogous

#B63580 #B63540 #B66A35

triadic

#B63540 #40B635 #3540B6

tetradic

#B63540 #80B635 #35B6AB #6A35B6

square

#B63540 #80B635 #35B6AB #6A35B6

split-complementary

#B63540 #35B66A #3580B6

monochromatic

#57191F #87272F #B63540 #CF5963 #DD8990

Accessibility & contrast

On white

5.88

#B63540 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B63540 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63540

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63540	#FFFFFF	#000000	##FFFFFF
##B63540	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533F

Deuteranopia (green-blind)

#796E3C

Tritanopia (blue-blind)

#C80D3A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b63540;
/* rgb */ color: rgb(182, 53, 64);
/* oklch */ color: oklch(52.5% 0.165 20.3);

Tailwind

colors: {
  custom: {
    50: '#d37574',
    500: '#b63540',
    950: '#000000',
  },
}

SCSS

$custom: #b63540;
$custom-light: #d37574;
$custom-dark: #000000;

JSON

{
  "hex": "#b63540",
  "rgb": {
    "r": 182,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 354.884,
    "s": 54.894,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52507,
    "c": 0.16479,
    "h": 20.3
  },
  "luminance": 0.12861
}

Semantic roles & 50–950 ramp

primary

#B63540

secondary

#80C7C1

accent

#DED24A

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63540

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

Preview Lab → · Contrast checker → · Palette generator →