#B13F33#B13F33

#B13F33 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.151 H 29.1°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B13F33
RGB	rgb(177, 63, 51)
HSL	hsl(6, 55%, 45%)
HSV	hsv(6, 71%, 69%)
CMYK	cmyk(0%, 64.4%, 71.2%, 30.6%)
CIE-LAB	lab(42.98, 45.67, 32.09)
CIE-LCH	lch(42.98, 55.82, 35.09°)
OKLab	oklab(52.59% 0.1318 0.0735)
OKLCH	oklch(52.59% 0.151 29.1)
XYZ	xyz(20.5087, 13.1440, 4.5885)
Luminance	0.1314 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F33 #33A5B1

analogous

#B13366 #B13F33 #B17E33

triadic

#B13F33 #33B13F #3F33B1

tetradic

#B13F33 #66B133 #33A5B1 #7E33B1

square

#B13F33 #66B133 #33A5B1 #7E33B1

split-complementary

#B13F33 #33B17E #3366B1

monochromatic

#521D18 #812E25 #B13F33 #CE5F54 #DB8C83

Accessibility & contrast

On white

5.79

#B13F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B13F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F33

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F33	#FFFFFF	#000000	##FFFFFF
##B13F33	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5631

Deuteranopia (green-blind)

#7B6F30

Tritanopia (blue-blind)

#C2233D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13f33;
/* rgb */ color: rgb(177, 63, 51);
/* oklch */ color: oklch(52.6% 0.151 29.1);

Tailwind

colors: {
  custom: {
    50: '#d07a6b',
    500: '#b13f33',
    950: '#000000',
  },
}

SCSS

$custom: #b13f33;
$custom-light: #d07a6b;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f33",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 51
  },
  "hsl": {
    "h": 5.714,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.52591,
    "c": 0.15092,
    "h": 29.1
  },
  "luminance": 0.13141
}

Semantic roles & 50–950 ramp

primary

#B13F33

secondary

#7BBEC5

accent

#D0DF49

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13F33

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

Preview Lab → · Contrast checker → · Palette generator →