#B13F31#B13F31

#B13F31 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.151 H 29.9°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B13F31
RGB	rgb(177, 63, 49)
HSL	hsl(7, 57%, 44%)
HSV	hsv(7, 72%, 69%)
CMYK	cmyk(0%, 64.4%, 72.3%, 30.6%)
CIE-LAB	lab(42.95, 45.57, 33.21)
CIE-LCH	lch(42.95, 56.39, 36.08°)
OKLab	oklab(52.56% 0.1311 0.0755)
OKLCH	oklch(52.56% 0.151 29.9)
XYZ	xyz(20.4655, 13.1268, 4.3612)
Luminance	0.1312 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F31 #31A3B1

analogous

#B13163 #B13F31 #B17F31

triadic

#B13F31 #31B13F #3F31B1

tetradic

#B13F31 #63B131 #31A3B1 #7F31B1

square

#B13F31 #63B131 #31A3B1 #7F31B1

split-complementary

#B13F31 #31B17F #3163B1

monochromatic

#511D16 #812E24 #B13F31 #CF5E51 #DC8A80

Accessibility & contrast

On white

5.79

#B13F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B13F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F31

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F31	#FFFFFF	#000000	##FFFFFF
##B13F31	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E562F

Deuteranopia (green-blind)

#7B6F2D

Tritanopia (blue-blind)

#C3223C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13f31;
/* rgb */ color: rgb(177, 63, 49);
/* oklch */ color: oklch(52.6% 0.151 29.9);

Tailwind

colors: {
  custom: {
    50: '#d0796a',
    500: '#b13f31',
    950: '#000000',
  },
}

SCSS

$custom: #b13f31;
$custom-light: #d0796a;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f31",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 6.563,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52563,
    "c": 0.15132,
    "h": 29.9
  },
  "luminance": 0.13124
}

Semantic roles & 50–950 ramp

primary

#B13F31

secondary

#79BDC5

accent

#CFE048

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13F31

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

Preview Lab → · Contrast checker → · Palette generator →