#B63E3A#B63E3A

#B63E3A is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.156 H 25.8°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#B63E3A
RGB	rgb(182, 62, 58)
HSL	hsl(2, 52%, 47%)
HSV	hsv(2, 68%, 71%)
CMYK	cmyk(0%, 65.9%, 68.1%, 28.6%)
CIE-LAB	lab(43.80, 48.22, 29.17)
CIE-LCH	lch(43.80, 56.36, 31.17°)
OKLab	oklab(53.4% 0.1407 0.068)
OKLCH	oklch(53.4% 0.156 25.8)
XYZ	xyz(21.7800, 13.6989, 5.4994)
Luminance	0.1370 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63E3A #3AB2B6

analogous

#B63A74 #B63E3A #B67C3A

triadic

#B63E3A #3AB63E #3E3AB6

tetradic

#B63E3A #74B63A #3AB2B6 #7C3AB6

square

#B63E3A #74B63A #3AB2B6 #7C3AB6

split-complementary

#B63E3A #3AB67C #3A74B6

monochromatic

#591E1C #882E2B #B63E3A #CD6461 #DB928F

Accessibility & contrast

On white

5.62

#B63E3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#B63E3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63E3A

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63E3A	#FFFFFF	#000000	##FFFFFF
##B63E3A	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5739

Deuteranopia (green-blind)

#7D7136

Tritanopia (blue-blind)

#C8203E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63e3a;
/* rgb */ color: rgb(182, 62, 58);
/* oklch */ color: oklch(53.4% 0.156 25.8);

Tailwind

colors: {
  custom: {
    50: '#d37a70',
    500: '#b63e3a',
    950: '#000000',
  },
}

SCSS

$custom: #b63e3a;
$custom-light: #d37a70;
$custom-dark: #000000;

JSON

{
  "hex": "#b63e3a",
  "rgb": {
    "r": 182,
    "g": 62,
    "b": 58
  },
  "hsl": {
    "h": 1.935,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53403,
    "c": 0.15624,
    "h": 25.8
  },
  "luminance": 0.13696
}

Semantic roles & 50–950 ramp

primary

#B63E3A

secondary

#86C4C6

accent

#D7DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B63E3A

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

Preview Lab → · Contrast checker → · Palette generator →