#B63440#B63440

#B63440 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.166 H 20.1°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B63440
RGB	rgb(182, 52, 64)
HSL	hsl(354, 56%, 46%)
HSV	hsv(354, 71%, 71%)
CMYK	cmyk(0%, 71.4%, 64.8%, 28.6%)
CIE-LAB	lab(42.42, 52.59, 23.84)
CIE-LCH	lch(42.42, 57.74, 24.39°)
OKLab	oklab(52.41% 0.1557 0.0568)
OKLCH	oklch(52.41% 0.166 20.1)
XYZ	xyz(21.4470, 12.7743, 6.1859)
Luminance	0.1277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63440 #34B6AA

analogous

#B63481 #B63440 #B66934

triadic

#B63440 #40B634 #3440B6

tetradic

#B63440 #81B634 #34B6AA #6934B6

square

#B63440 #81B634 #34B6AA #6934B6

split-complementary

#B63440 #34B669 #3481B6

monochromatic

#57191F #86262F #B63440 #CF5863 #DD888F

Accessibility & contrast

On white

5.91

#B63440 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B63440 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63440

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63440	#FFFFFF	#000000	##FFFFFF
##B63440	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533F

Deuteranopia (green-blind)

#796E3C

Tritanopia (blue-blind)

#C80939

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b63440;
/* rgb */ color: rgb(182, 52, 64);
/* oklch */ color: oklch(52.4% 0.166 20.1);

Tailwind

colors: {
  custom: {
    50: '#d37574',
    500: '#b63440',
    950: '#000000',
  },
}

SCSS

$custom: #b63440;
$custom-light: #d37574;
$custom-dark: #000000;

JSON

{
  "hex": "#b63440",
  "rgb": {
    "r": 182,
    "g": 52,
    "b": 64
  },
  "hsl": {
    "h": 354.462,
    "s": 55.556,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52405,
    "c": 0.16578,
    "h": 20.1
  },
  "luminance": 0.12771
}

Semantic roles & 50–950 ramp

primary

#B63440

secondary

#7FC7C0

accent

#DFD149

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63440

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

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