#B63C3A#B63C3A

#B63C3A is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.158 H 25.1°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#B63C3A
RGB	rgb(182, 60, 58)
HSL	hsl(1, 52%, 47%)
HSV	hsv(1, 68%, 71%)
CMYK	cmyk(0%, 67%, 68.1%, 28.6%)
CIE-LAB	lab(43.49, 49.06, 28.79)
CIE-LCH	lch(43.49, 56.89, 30.41°)
OKLab	oklab(53.17% 0.1433 0.0672)
OKLCH	oklch(53.17% 0.158 25.1)
XYZ	xyz(21.6732, 13.4854, 5.4639)
Luminance	0.1348 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63C3A #3AB4B6

analogous

#B63A76 #B63C3A #B67A3A

triadic

#B63C3A #3AB63C #3C3AB6

tetradic

#B63C3A #76B63A #3AB4B6 #7A3AB6

square

#B63C3A #76B63A #3AB4B6 #7A3AB6

split-complementary

#B63C3A #3AB67A #3A76B6

monochromatic

#591D1C #882D2B #B63C3A #CD6261 #DB908F

Accessibility & contrast

On white

5.68

#B63C3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B63C3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63C3A

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63C3A	#FFFFFF	#000000	##FFFFFF
##B63C3A	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5639

Deuteranopia (green-blind)

#7C7036

Tritanopia (blue-blind)

#C81C3D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63c3a;
/* rgb */ color: rgb(182, 60, 58);
/* oklch */ color: oklch(53.2% 0.158 25.1);

Tailwind

colors: {
  custom: {
    50: '#d37970',
    500: '#b63c3a',
    950: '#000000',
  },
}

SCSS

$custom: #b63c3a;
$custom-light: #d37970;
$custom-dark: #000000;

JSON

{
  "hex": "#b63c3a",
  "rgb": {
    "r": 182,
    "g": 60,
    "b": 58
  },
  "hsl": {
    "h": 0.968,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53169,
    "c": 0.15828,
    "h": 25.1
  },
  "luminance": 0.13482
}

Semantic roles & 50–950 ramp

primary

#B63C3A

secondary

#86C5C6

accent

#D9DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63C3A

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

Preview Lab → · Contrast checker → · Palette generator →