#B13830#B13830

#B13830 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.7% C 0.158 H 27.8°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B13830
RGB	rgb(177, 56, 48)
HSL	hsl(4, 57%, 44%)
HSV	hsv(4, 73%, 69%)
CMYK	cmyk(0%, 68.4%, 72.9%, 30.6%)
CIE-LAB	lab(41.83, 48.52, 32.51)
CIE-LCH	lch(41.83, 58.41, 33.82°)
OKLab	oklab(51.72% 0.1402 0.0738)
OKLCH	oklch(51.72% 0.158 27.8)
XYZ	xyz(20.0813, 12.3918, 4.1302)
Luminance	0.1239 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13830 #30A9B1

analogous

#B13069 #B13830 #B17930

triadic

#B13830 #30B138 #3830B1

tetradic

#B13830 #69B130 #30A9B1 #7930B1

square

#B13830 #69B130 #30A9B1 #7930B1

split-complementary

#B13830 #30B179 #3069B1

monochromatic

#511A16 #812923 #B13830 #CF574F #DC857F

Accessibility & contrast

On white

6.04

#B13830 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B13830 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13830

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13830	#FFFFFF	#000000	##FFFFFF
##B13830	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A522E

Deuteranopia (green-blind)

#786C2C

Tritanopia (blue-blind)

#C31337

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b13830;
/* rgb */ color: rgb(177, 56, 48);
/* oklch */ color: oklch(51.7% 0.158 27.8);

Tailwind

colors: {
  custom: {
    50: '#d07669',
    500: '#b13830',
    950: '#000000',
  },
}

SCSS

$custom: #b13830;
$custom-light: #d07669;
$custom-dark: #000000;

JSON

{
  "hex": "#b13830",
  "rgb": {
    "r": 177,
    "g": 56,
    "b": 48
  },
  "hsl": {
    "h": 3.721,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51717,
    "c": 0.15839,
    "h": 27.8
  },
  "luminance": 0.12389
}

Semantic roles & 50–950 ramp

primary

#B13830

secondary

#78C0C5

accent

#D7E147

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13830

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

Preview Lab → · Contrast checker → · Palette generator →