#B13B27#B13B27

#B13B27 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.157 H 32.1°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B13B27
RGB	rgb(177, 59, 39)
HSL	hsl(9, 64%, 42%)
HSV	hsv(9, 78%, 69%)
CMYK	cmyk(0%, 66.7%, 78%, 30.6%)
CIE-LAB	lab(42.19, 46.88, 37.98)
CIE-LCH	lch(42.19, 60.34, 39.01°)
OKLab	oklab(51.95% 0.1332 0.0835)
OKLCH	oklch(51.95% 0.157 32.1)
XYZ	xyz(20.0639, 12.6245, 3.2993)
Luminance	0.1262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13B27 #279DB1

analogous

#B12758 #B13B27 #B18027

triadic

#B13B27 #27B13B #3B27B1

tetradic

#B13B27 #58B127 #279DB1 #8027B1

square

#B13B27 #58B127 #279DB1 #8027B1

split-complementary

#B13B27 #27B180 #2758B1

monochromatic

#4D1A11 #7F2A1C #B13B27 #D55640 #E08272

Accessibility & contrast

On white

5.96

#B13B27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B13B27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13B27

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13B27	#FFFFFF	#000000	##FFFFFF
##B13B27	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5324

Deuteranopia (green-blind)

#7A6D22

Tritanopia (blue-blind)

#C31837

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b13b27;
/* rgb */ color: rgb(177, 59, 39);
/* oklch */ color: oklch(52.0% 0.157 32.1);

Tailwind

colors: {
  custom: {
    50: '#d17762',
    500: '#b13b27',
    950: '#000000',
  },
}

SCSS

$custom: #b13b27;
$custom-light: #d17762;
$custom-dark: #000000;

JSON

{
  "hex": "#b13b27",
  "rgb": {
    "r": 177,
    "g": 59,
    "b": 39
  },
  "hsl": {
    "h": 8.696,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51954,
    "c": 0.15718,
    "h": 32.1
  },
  "luminance": 0.12622
}

Semantic roles & 50–950 ramp

primary

#B13B27

secondary

#6DBAC7

accent

#CFE741

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B13B27

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

Preview Lab → · Contrast checker → · Palette generator →