#B63E27#B63E27

#B63E27 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.160 H 32.9°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B63E27
RGB	rgb(182, 62, 39)
HSL	hsl(10, 65%, 43%)
HSV	hsv(10, 79%, 71%)
CMYK	cmyk(0%, 65.9%, 78.6%, 28.6%)
CIE-LAB	lab(43.57, 47.35, 39.68)
CIE-LCH	lch(43.57, 61.78, 39.96°)
OKLab	oklab(53.15% 0.1341 0.0868)
OKLCH	oklch(53.15% 0.16 32.9)
XYZ	xyz(21.3826, 13.5399, 3.4066)
Luminance	0.1354 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63E27 #279FB6

analogous

#B62758 #B63E27 #B68527

triadic

#B63E27 #27B63E #3E27B6

tetradic

#B63E27 #58B627 #279FB6 #8527B6

square

#B63E27 #58B627 #279FB6 #8527B6

split-complementary

#B63E27 #27B685 #2758B6

monochromatic

#511C11 #842D1C #B63E27 #D75B43 #E28776

Accessibility & contrast

On white

5.66

#B63E27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B63E27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63E27

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63E27	#FFFFFF	#000000	##FFFFFF
##B63E27	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605623

Deuteranopia (green-blind)

#7E7122

Tritanopia (blue-blind)

#C81B3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63e27;
/* rgb */ color: rgb(182, 62, 39);
/* oklch */ color: oklch(53.2% 0.160 32.9);

Tailwind

colors: {
  custom: {
    50: '#d47963',
    500: '#b63e27',
    950: '#000000',
  },
}

SCSS

$custom: #b63e27;
$custom-light: #d47963;
$custom-dark: #000000;

JSON

{
  "hex": "#b63e27",
  "rgb": {
    "r": 182,
    "g": 62,
    "b": 39
  },
  "hsl": {
    "h": 9.65,
    "s": 64.706,
    "l": 43.333
  },
  "oklch": {
    "l": 0.53154,
    "c": 0.15973,
    "h": 32.9
  },
  "luminance": 0.13537
}

Semantic roles & 50–950 ramp

primary

#B63E27

secondary

#70BBC9

accent

#CDE840

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B63E27

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

Preview Lab → · Contrast checker → · Palette generator →