#B13B2B#B13B2B

#B13B2B is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.156 H 30.7°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B13B2B
RGB	rgb(177, 59, 43)
HSL	hsl(7, 61%, 43%)
HSV	hsv(7, 76%, 69%)
CMYK	cmyk(0%, 66.7%, 75.7%, 30.6%)
CIE-LAB	lab(42.23, 47.04, 35.82)
CIE-LCH	lch(42.23, 59.13, 37.28°)
OKLab	oklab(52% 0.1345 0.0798)
OKLCH	oklch(52% 0.156 30.7)
XYZ	xyz(20.1337, 12.6524, 3.6670)
Luminance	0.1265 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13B2B #2BA1B1

analogous

#B12B5E #B13B2B #B17E2B

triadic

#B13B2B #2BB13B #3B2BB1

tetradic

#B13B2B #5EB12B #2BA1B1 #7E2BB1

square

#B13B2B #5EB12B #2BA1B1 #7E2BB1

split-complementary

#B13B2B #2BB17E #2B5EB1

monochromatic

#4F1A13 #802B1F #B13B2B #D25847 #DE8478

Accessibility & contrast

On white

5.95

#B13B2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B13B2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13B2B

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13B2B	#FFFFFF	#000000	##FFFFFF
##B13B2B	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)

#5C5328

Deuteranopia (green-blind)

#7A6D27

Tritanopia (blue-blind)

#C31938

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b13b2b;
/* rgb */ color: rgb(177, 59, 43);
/* oklch */ color: oklch(52.0% 0.156 30.7);

Tailwind

colors: {
  custom: {
    50: '#d07765',
    500: '#b13b2b',
    950: '#000000',
  },
}

SCSS

$custom: #b13b2b;
$custom-light: #d07765;
$custom-dark: #000000;

JSON

{
  "hex": "#b13b2b",
  "rgb": {
    "r": 177,
    "g": 59,
    "b": 43
  },
  "hsl": {
    "h": 7.164,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52,
    "c": 0.1564,
    "h": 30.7
  },
  "luminance": 0.12649
}

Semantic roles & 50–950 ramp

primary

#B13B2B

secondary

#72BCC6

accent

#D1E444

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13B2B

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

Preview Lab → · Contrast checker → · Palette generator →