#B63F3C#B63F3C

#B63F3C is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.6% C 0.155 H 25.3°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#B63F3C
RGB	rgb(182, 63, 60)
HSL	hsl(1, 50%, 47%)
HSV	hsv(1, 67%, 71%)
CMYK	cmyk(0%, 65.4%, 67%, 28.6%)
CIE-LAB	lab(43.99, 47.90, 28.21)
CIE-LCH	lch(43.99, 55.59, 30.50°)
OKLab	oklab(53.55% 0.1401 0.0662)
OKLCH	oklch(53.55% 0.155 25.3)
XYZ	xyz(21.8868, 13.8294, 5.7909)
Luminance	0.1383 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63F3C #3CB3B6

analogous

#B63C76 #B63F3C #B67C3C

triadic

#B63F3C #3CB63F #3F3CB6

tetradic

#B63F3C #76B63C #3CB3B6 #7C3CB6

square

#B63F3C #76B63C #3CB3B6 #7C3CB6

split-complementary

#B63F3C #3CB67C #3C76B6

monochromatic

#5A1F1E #882F2D #B63F3C #CC6663 #DB9391

Accessibility & contrast

On white

5.58

#B63F3C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B63F3C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63F3C

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63F3C	#FFFFFF	#000000	##FFFFFF
##B63F3C	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F583B

Deuteranopia (green-blind)

#7D7139

Tritanopia (blue-blind)

#C8223F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63f3c;
/* rgb */ color: rgb(182, 63, 60);
/* oklch */ color: oklch(53.6% 0.155 25.3);

Tailwind

colors: {
  custom: {
    50: '#d37a72',
    500: '#b63f3c',
    950: '#000000',
  },
}

SCSS

$custom: #b63f3c;
$custom-light: #d37a72;
$custom-dark: #000000;

JSON

{
  "hex": "#b63f3c",
  "rgb": {
    "r": 182,
    "g": 63,
    "b": 60
  },
  "hsl": {
    "h": 1.475,
    "s": 50.413,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53554,
    "c": 0.15491,
    "h": 25.3
  },
  "luminance": 0.13826
}

Semantic roles & 50–950 ramp

primary

#B63F3C

secondary

#88C4C6

accent

#D6DA4E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B63F3C

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

Preview Lab → · Contrast checker → · Palette generator →