#B13133#B13133

#B13133 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.165 H 24.4°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#B13133
RGB	rgb(177, 49, 51)
HSL	hsl(359, 57%, 44%)
HSV	hsv(359, 72%, 69%)
CMYK	cmyk(0%, 72.3%, 71.2%, 30.6%)
CIE-LAB	lab(40.87, 51.40, 29.62)
CIE-LCH	lch(40.87, 59.33, 29.95°)
OKLab	oklab(51.01% 0.1499 0.0681)
OKLCH	oklch(51.01% 0.165 24.4)
XYZ	xyz(19.8295, 11.7857, 4.3621)
Luminance	0.1178 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13133 #31B1AF

analogous

#B13173 #B13133 #B16F31

triadic

#B13133 #33B131 #3133B1

tetradic

#B13133 #73B131 #31B1AF #6F31B1

square

#B13133 #73B131 #31B1AF #6F31B1

split-complementary

#B13133 #31B16F #3173B1

monochromatic

#511617 #812425 #B13133 #CF5152 #DC8082

Accessibility & contrast

On white

6.26

#B13133 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B13133 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13133

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13133	#FFFFFF	#000000	##FFFFFF
##B13133	1.00	6.26	3.36	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F32

Deuteranopia (green-blind)

#766A2F

Tritanopia (blue-blind)

#C30033

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b13133;
/* rgb */ color: rgb(177, 49, 51);
/* oklch */ color: oklch(51.0% 0.165 24.4);

Tailwind

colors: {
  custom: {
    50: '#d0726b',
    500: '#b13133',
    950: '#000000',
  },
}

SCSS

$custom: #b13133;
$custom-light: #d0726b;
$custom-dark: #000000;

JSON

{
  "hex": "#b13133",
  "rgb": {
    "r": 177,
    "g": 49,
    "b": 51
  },
  "hsl": {
    "h": 359.063,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51014,
    "c": 0.16461,
    "h": 24.4
  },
  "luminance": 0.11783
}

Semantic roles & 50–950 ramp

primary

#B13133

secondary

#79C5C4

accent

#E0DE48

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #B13133

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

Preview Lab → · Contrast checker → · Palette generator →