#B13729#B13729

#B13729 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.161 H 30.0°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#B13729
RGB	rgb(177, 55, 41)
HSL	hsl(6, 62%, 43%)
HSV	hsv(6, 77%, 69%)
CMYK	cmyk(0%, 68.9%, 76.8%, 30.6%)
CIE-LAB	lab(41.60, 48.63, 36.25)
CIE-LCH	lch(41.60, 60.65, 36.70°)
OKLab	oklab(51.52% 0.139 0.0803)
OKLCH	oklch(51.52% 0.161 30)
XYZ	xyz(19.9001, 12.2426, 3.4126)
Luminance	0.1224 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13729 #29A3B1

analogous

#B1295F #B13729 #B17B29

triadic

#B13729 #29B137 #3729B1

tetradic

#B13729 #5FB129 #29A3B1 #7B29B1

square

#B13729 #5FB129 #29A3B1 #7B29B1

split-complementary

#B13729 #29B17B #295FB1

monochromatic

#4E1812 #7F281D #B13729 #D45244 #DF8075

Accessibility & contrast

On white

6.09

#B13729 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#B13729 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13729

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13729	#FFFFFF	#000000	##FFFFFF
##B13729	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5126

Deuteranopia (green-blind)

#786C24

Tritanopia (blue-blind)

#C30E35

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13729;
/* rgb */ color: rgb(177, 55, 41);
/* oklch */ color: oklch(51.5% 0.161 30.0);

Tailwind

colors: {
  custom: {
    50: '#d17564',
    500: '#b13729',
    950: '#000000',
  },
}

SCSS

$custom: #b13729;
$custom-light: #d17564;
$custom-dark: #000000;

JSON

{
  "hex": "#b13729",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 41
  },
  "hsl": {
    "h": 6.176,
    "s": 62.385,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51516,
    "c": 0.16053,
    "h": 30
  },
  "luminance": 0.1224
}

Semantic roles & 50–950 ramp

primary

#B13729

secondary

#6FBEC7

accent

#D5E542

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B13729

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

Preview Lab → · Contrast checker → · Palette generator →