#B63727#B63727

#B63727 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.166 H 30.5°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B63727
RGB	rgb(182, 55, 39)
HSL	hsl(7, 65%, 43%)
HSV	hsv(7, 79%, 71%)
CMYK	cmyk(0%, 69.8%, 78.6%, 28.6%)
CIE-LAB	lab(42.50, 50.24, 38.59)
CIE-LCH	lch(42.50, 63.34, 37.53°)
OKLab	oklab(52.36% 0.1431 0.0844)
OKLCH	oklch(52.36% 0.166 30.5)
XYZ	xyz(21.0262, 12.8271, 3.2878)
Luminance	0.1282 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63727 #27A6B6

analogous

#B6275E #B63727 #B67E27

triadic

#B63727 #27B637 #3727B6

tetradic

#B63727 #5EB627 #27A6B6 #7E27B6

square

#B63727 #5EB627 #27A6B6 #7E27B6

split-complementary

#B63727 #27B67E #275EB6

monochromatic

#511911 #84281C #B63727 #D75443 #E28276

Accessibility & contrast

On white

5.89

#B63727 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B63727 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63727

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63727	#FFFFFF	#000000	##FFFFFF
##B63727	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5324

Deuteranopia (green-blind)

#7C6F22

Tritanopia (blue-blind)

#C80634

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b63727;
/* rgb */ color: rgb(182, 55, 39);
/* oklch */ color: oklch(52.4% 0.166 30.5);

Tailwind

colors: {
  custom: {
    50: '#d57662',
    500: '#b63727',
    950: '#000000',
  },
}

SCSS

$custom: #b63727;
$custom-light: #d57662;
$custom-dark: #000000;

JSON

{
  "hex": "#b63727",
  "rgb": {
    "r": 182,
    "g": 55,
    "b": 39
  },
  "hsl": {
    "h": 6.713,
    "s": 64.706,
    "l": 43.333
  },
  "oklch": {
    "l": 0.52356,
    "c": 0.16613,
    "h": 30.5
  },
  "luminance": 0.12824
}

Semantic roles & 50–950 ramp

primary

#B63727

secondary

#70BFC9

accent

#D5E840

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B63727

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

Preview Lab → · Contrast checker → · Palette generator →