#B63F2F#B63F2F

#B63F2F is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.157 H 30.6°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#B63F2F
RGB	rgb(182, 63, 47)
HSL	hsl(7, 59%, 45%)
HSV	hsv(7, 74%, 71%)
CMYK	cmyk(0%, 65.4%, 74.2%, 28.6%)
CIE-LAB	lab(43.81, 47.24, 35.56)
CIE-LCH	lch(43.81, 59.13, 36.97°)
OKLab	oklab(53.37% 0.1354 0.0799)
OKLCH	oklch(53.37% 0.157 30.6)
XYZ	xyz(21.5843, 13.7084, 4.1982)
Luminance	0.1371 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63F2F #2FA6B6

analogous

#B62F63 #B63F2F #B6822F

triadic

#B63F2F #2FB63F #3F2FB6

tetradic

#B63F2F #63B62F #2FA6B6 #822FB6

square

#B63F2F #63B62F #2FA6B6 #822FB6

split-complementary

#B63F2F #2FB682 #2F63B6

monochromatic

#551D16 #852E22 #B63F2F #D26050 #DE8C81

Accessibility & contrast

On white

5.61

#B63F2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#B63F2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63F2F

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63F2F	#FFFFFF	#000000	##FFFFFF
##B63F2F	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60572C

Deuteranopia (green-blind)

#7E712B

Tritanopia (blue-blind)

#C81F3C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63f2f;
/* rgb */ color: rgb(182, 63, 47);
/* oklch */ color: oklch(53.4% 0.157 30.6);

Tailwind

colors: {
  custom: {
    50: '#d47a68',
    500: '#b63f2f',
    950: '#000000',
  },
}

SCSS

$custom: #b63f2f;
$custom-light: #d47a68;
$custom-dark: #000000;

JSON

{
  "hex": "#b63f2f",
  "rgb": {
    "r": 182,
    "g": 63,
    "b": 47
  },
  "hsl": {
    "h": 7.111,
    "s": 58.952,
    "l": 44.902
  },
  "oklch": {
    "l": 0.53366,
    "c": 0.15718,
    "h": 30.6
  },
  "luminance": 0.13705
}

Semantic roles & 50–950 ramp

primary

#B63F2F

secondary

#79BEC7

accent

#D0E246

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B63F2F

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

Preview Lab → · Contrast checker → · Palette generator →