#B13633#B13633

#B13633 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.160 H 25.9°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B13633
RGB	rgb(177, 54, 51)
HSL	hsl(1, 55%, 45%)
HSV	hsv(1, 71%, 69%)
CMYK	cmyk(0%, 69.5%, 71.2%, 30.6%)
CIE-LAB	lab(41.58, 49.48, 30.45)
CIE-LCH	lch(41.58, 58.10, 31.61°)
OKLab	oklab(51.54% 0.1438 0.0699)
OKLCH	oklch(51.54% 0.16 25.9)
XYZ	xyz(20.0504, 12.2274, 4.4357)
Luminance	0.1222 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13633 #33AEB1

analogous

#B1336F #B13633 #B17533

triadic

#B13633 #33B136 #3633B1

tetradic

#B13633 #6FB133 #33AEB1 #7533B1

square

#B13633 #6FB133 #33AEB1 #7533B1

split-complementary

#B13633 #33B175 #336FB1

monochromatic

#521918 #812825 #B13633 #CE5654 #DB8583

Accessibility & contrast

On white

6.10

#B13633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B13633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13633

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13633	#FFFFFF	#000000	##FFFFFF
##B13633	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595132

Deuteranopia (green-blind)

#776C2F

Tritanopia (blue-blind)

#C30F37

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13633;
/* rgb */ color: rgb(177, 54, 51);
/* oklch */ color: oklch(51.5% 0.160 25.9);

Tailwind

colors: {
  custom: {
    50: '#d0756b',
    500: '#b13633',
    950: '#000000',
  },
}

SCSS

$custom: #b13633;
$custom-light: #d0756b;
$custom-dark: #000000;

JSON

{
  "hex": "#b13633",
  "rgb": {
    "r": 177,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.429,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51538,
    "c": 0.15987,
    "h": 25.9
  },
  "luminance": 0.12224
}

Semantic roles & 50–950 ramp

primary

#B13633

secondary

#7BC3C5

accent

#DBDF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13633

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

Preview Lab → · Contrast checker → · Palette generator →