#B13D3D#B13D3D

#B13D3D is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.151 H 23.9°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B13D3D
RGB	rgb(177, 61, 61)
HSL	hsl(0, 49%, 47%)
HSV	hsv(0, 66%, 69%)
CMYK	cmyk(0%, 65.5%, 65.5%, 30.6%)
CIE-LAB	lab(42.80, 47.11, 25.95)
CIE-LCH	lch(42.80, 53.78, 28.85°)
OKLab	oklab(52.5% 0.1384 0.0614)
OKLCH	oklch(52.5% 0.151 23.9)
XYZ	xyz(20.6446, 13.0244, 5.8408)
Luminance	0.1302 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13D3D #3DB1B1

analogous

#B13D77 #B13D3D #B1773D

triadic

#B13D3D #3DB13D #3D3DB1

tetradic

#B13D3D #77B13D #3DB1B1 #773DB1

square

#B13D3D #77B13D #3DB1B1 #773DB1

split-complementary

#B13D3D #3DB177 #3D77B1

monochromatic

#561E1E #832D2D #B13D3D #C96262 #D99090

Accessibility & contrast

On white

5.83

#B13D3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B13D3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13D3D

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13D3D	#FFFFFF	#000000	##FFFFFF
##B13D3D	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C553C

Deuteranopia (green-blind)

#796E3A

Tritanopia (blue-blind)

#C2223E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13d3d;
/* rgb */ color: rgb(177, 61, 61);
/* oklch */ color: oklch(52.5% 0.151 23.9);

Tailwind

colors: {
  custom: {
    50: '#cf7972',
    500: '#b13d3d',
    950: '#000000',
  },
}

SCSS

$custom: #b13d3d;
$custom-light: #cf7972;
$custom-dark: #000000;

JSON

{
  "hex": "#b13d3d",
  "rgb": {
    "r": 177,
    "g": 61,
    "b": 61
  },
  "hsl": {
    "h": 0,
    "s": 48.739,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52503,
    "c": 0.15139,
    "h": 23.9
  },
  "luminance": 0.13022
}

Semantic roles & 50–950 ramp

primary

#B13D3D

secondary

#86C4C4

accent

#D8D850

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B13D3D

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

Preview Lab → · Contrast checker → · Palette generator →