#B13E3E#B13E3E

#B13E3E is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.150 H 23.8°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B13E3E
RGB	rgb(177, 62, 62)
HSL	hsl(0, 48%, 47%)
HSV	hsv(0, 65%, 69%)
CMYK	cmyk(0%, 65%, 65%, 30.6%)
CIE-LAB	lab(42.98, 46.73, 25.57)
CIE-LCH	lch(42.98, 53.27, 28.68°)
OKLab	oklab(52.64% 0.1374 0.0607)
OKLCH	oklch(52.64% 0.15 23.8)
XYZ	xyz(20.7257, 13.1430, 6.0020)
Luminance	0.1314 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13E3E #3EB1B1

analogous

#B13E78 #B13E3E #B1783E

triadic

#B13E3E #3EB13E #3E3EB1

tetradic

#B13E3E #78B13E #3EB1B1 #783EB1

square

#B13E3E #78B13E #3EB1B1 #783EB1

split-complementary

#B13E3E #3EB178 #3E78B1

monochromatic

#561E1E #842E2E #B13E3E #C96464 #D89191

Accessibility & contrast

On white

5.79

#B13E3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B13E3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13E3E

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13E3E	#FFFFFF	#000000	##FFFFFF
##B13E3E	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)

#5C563D

Deuteranopia (green-blind)

#796F3B

Tritanopia (blue-blind)

#C2243F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13e3e;
/* rgb */ color: rgb(177, 62, 62);
/* oklch */ color: oklch(52.6% 0.150 23.8);

Tailwind

colors: {
  custom: {
    50: '#cf7973',
    500: '#b13e3e',
    950: '#000000',
  },
}

SCSS

$custom: #b13e3e;
$custom-light: #cf7973;
$custom-dark: #000000;

JSON

{
  "hex": "#b13e3e",
  "rgb": {
    "r": 177,
    "g": 62,
    "b": 62
  },
  "hsl": {
    "h": 0,
    "s": 48.117,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52642,
    "c": 0.15019,
    "h": 23.8
  },
  "luminance": 0.1314
}

Semantic roles & 50–950 ramp

primary

#B13E3E

secondary

#87C4C4

accent

#D8D850

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B13E3E

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

Preview Lab → · Contrast checker → · Palette generator →