#B63B2F#B63B2F

#B63B2F is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.161 H 29.1°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B63B2F
RGB	rgb(182, 59, 47)
HSL	hsl(5, 59%, 45%)
HSV	hsv(5, 74%, 71%)
CMYK	cmyk(0%, 67.6%, 74.2%, 28.6%)
CIE-LAB	lab(43.18, 48.94, 34.86)
CIE-LCH	lch(43.18, 60.08, 35.46°)
OKLab	oklab(52.9% 0.1407 0.0784)
OKLCH	oklch(52.9% 0.161 29.1)
XYZ	xyz(21.3708, 13.2814, 4.1270)
Luminance	0.1328 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B2F #2FAAB6

analogous

#B62F67 #B63B2F #B67E2F

triadic

#B63B2F #2FB63B #3B2FB6

tetradic

#B63B2F #67B62F #2FAAB6 #7E2FB6

square

#B63B2F #67B62F #2FAAB6 #7E2FB6

split-complementary

#B63B2F #2FB67E #2F67B6

monochromatic

#551B16 #852B22 #B63B2F #D25C50 #DE8981

Accessibility & contrast

On white

5.74

#B63B2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B63B2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B2F

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B2F	#FFFFFF	#000000	##FFFFFF
##B63B2F	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E552D

Deuteranopia (green-blind)

#7C702B

Tritanopia (blue-blind)

#C81639

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63b2f;
/* rgb */ color: rgb(182, 59, 47);
/* oklch */ color: oklch(52.9% 0.161 29.1);

Tailwind

colors: {
  custom: {
    50: '#d47868',
    500: '#b63b2f',
    950: '#000000',
  },
}

SCSS

$custom: #b63b2f;
$custom-light: #d47868;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b2f",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 47
  },
  "hsl": {
    "h": 5.333,
    "s": 58.952,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52895,
    "c": 0.16102,
    "h": 29.1
  },
  "luminance": 0.13278
}

Semantic roles & 50–950 ramp

primary

#B63B2F

secondary

#79C0C7

accent

#D4E246

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63B2F

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

Preview Lab → · Contrast checker → · Palette generator →