#B13B2C#B13B2C

#B13B2C is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.0% C 0.156 H 30.3°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B13B2C
RGB	rgb(177, 59, 44)
HSL	hsl(7, 60%, 43%)
HSV	hsv(7, 75%, 69%)
CMYK	cmyk(0%, 66.7%, 75.1%, 30.6%)
CIE-LAB	lab(42.25, 47.09, 35.27)
CIE-LCH	lch(42.25, 58.83, 36.83°)
OKLab	oklab(52.01% 0.1348 0.0789)
OKLCH	oklch(52.01% 0.156 30.3)
XYZ	xyz(20.1523, 12.6598, 3.7648)
Luminance	0.1266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13B2C #2CA2B1

analogous

#B12C5F #B13B2C #B17D2C

triadic

#B13B2C #2CB13B #3B2CB1

tetradic

#B13B2C #5FB12C #2CA2B1 #7D2CB1

square

#B13B2C #5FB12C #2CA2B1 #7D2CB1

split-complementary

#B13B2C #2CB17D #2C5FB1

monochromatic

#4F1A14 #802B20 #B13B2C #D25849 #DE857A

Accessibility & contrast

On white

5.95

#B13B2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B13B2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13B2C

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13B2C	#FFFFFF	#000000	##FFFFFF
##B13B2C	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C532A

Deuteranopia (green-blind)

#7A6D28

Tritanopia (blue-blind)

#C31938

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b13b2c;
/* rgb */ color: rgb(177, 59, 44);
/* oklch */ color: oklch(52.0% 0.156 30.3);

Tailwind

colors: {
  custom: {
    50: '#d07766',
    500: '#b13b2c',
    950: '#000000',
  },
}

SCSS

$custom: #b13b2c;
$custom-light: #d07766;
$custom-dark: #000000;

JSON

{
  "hex": "#b13b2c",
  "rgb": {
    "r": 177,
    "g": 59,
    "b": 44
  },
  "hsl": {
    "h": 6.767,
    "s": 60.181,
    "l": 43.333
  },
  "oklch": {
    "l": 0.52012,
    "c": 0.15621,
    "h": 30.3
  },
  "luminance": 0.12657
}

Semantic roles & 50–950 ramp

primary

#B13B2C

secondary

#73BDC6

accent

#D1E344

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13B2C

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

Preview Lab → · Contrast checker → · Palette generator →