#B63347#B63347

#B63347 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.167 H 16.6°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B63347
RGB	rgb(182, 51, 71)
HSL	hsl(351, 56%, 46%)
HSV	hsv(351, 72%, 71%)
CMYK	cmyk(0%, 72%, 61%, 28.6%)
CIE-LAB	lab(42.42, 53.40, 19.52)
CIE-LCH	lch(42.42, 56.85, 20.08°)
OKLab	oklab(52.44% 0.1597 0.0476)
OKLCH	oklch(52.44% 0.167 16.6)
XYZ	xyz(21.6147, 12.7708, 7.2869)
Luminance	0.1277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63347 #33B6A2

analogous

#B63388 #B63347 #B66133

triadic

#B63347 #47B633 #3347B6

tetradic

#B63347 #88B633 #33B6A2 #6133B6

square

#B63347 #88B633 #33B6A2 #6133B6

split-complementary

#B63347 #33B661 #3388B6

monochromatic

#561822 #862634 #B63347 #D05669 #DD8694

Accessibility & contrast

On white

5.91

#B63347 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B63347 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63347

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63347	#FFFFFF	#000000	##FFFFFF
##B63347	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)

#565347

Deuteranopia (green-blind)

#776E43

Tritanopia (blue-blind)

#C70B3B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b63347;
/* rgb */ color: rgb(182, 51, 71);
/* oklch */ color: oklch(52.4% 0.167 16.6);

Tailwind

colors: {
  custom: {
    50: '#d3747a',
    500: '#b63347',
    950: '#000000',
  },
}

SCSS

$custom: #b63347;
$custom-light: #d3747a;
$custom-dark: #000000;

JSON

{
  "hex": "#b63347",
  "rgb": {
    "r": 182,
    "g": 51,
    "b": 71
  },
  "hsl": {
    "h": 350.84,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52442,
    "c": 0.16663,
    "h": 16.6
  },
  "luminance": 0.12768
}

Semantic roles & 50–950 ramp

primary

#B63347

secondary

#7EC7BC

accent

#E0C848

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B63347

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

Preview Lab → · Contrast checker → · Palette generator →