#B63F3D#B63F3D

#B63F3D is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.6% C 0.155 H 24.8°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#B63F3D
RGB	rgb(182, 63, 61)
HSL	hsl(1, 50%, 48%)
HSV	hsv(1, 66%, 71%)
CMYK	cmyk(0%, 65.4%, 66.5%, 28.6%)
CIE-LAB	lab(44.00, 47.96, 27.64)
CIE-LCH	lch(44.00, 55.35, 29.95°)
OKLab	oklab(53.57% 0.1405 0.065)
OKLCH	oklch(53.57% 0.155 24.8)
XYZ	xyz(21.9134, 13.8401, 5.9315)
Luminance	0.1384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63F3D #3DB4B6

analogous

#B63D77 #B63F3D #B67C3D

triadic

#B63F3D #3DB63F #3F3DB6

tetradic

#B63F3D #77B63D #3DB4B6 #7C3DB6

square

#B63F3D #77B63D #3DB4B6 #7C3DB6

split-complementary

#B63F3D #3DB67C #3D77B6

monochromatic

#5A1F1E #882F2E #B63F3D #CB6765 #DB9493

Accessibility & contrast

On white

5.57

#B63F3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B63F3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63F3D

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63F3D	#FFFFFF	#000000	##FFFFFF
##B63F3D	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F583C

Deuteranopia (green-blind)

#7D713A

Tritanopia (blue-blind)

#C82340

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63f3d;
/* rgb */ color: rgb(182, 63, 61);
/* oklch */ color: oklch(53.6% 0.155 24.8);

Tailwind

colors: {
  custom: {
    50: '#d37a72',
    500: '#b63f3d',
    950: '#000000',
  },
}

SCSS

$custom: #b63f3d;
$custom-light: #d37a72;
$custom-dark: #000000;

JSON

{
  "hex": "#b63f3d",
  "rgb": {
    "r": 182,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 0.992,
    "s": 49.794,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53571,
    "c": 0.15478,
    "h": 24.8
  },
  "luminance": 0.13837
}

Semantic roles & 50–950 ramp

primary

#B63F3D

secondary

#89C5C6

accent

#D7D94E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B63F3D

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

Preview Lab → · Contrast checker → · Palette generator →