#B03539#B03539

#B03539 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.4% C 0.159 H 23.0°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B03539
RGB	rgb(176, 53, 57)
HSL	hsl(358, 54%, 45%)
HSV	hsv(358, 70%, 69%)
CMYK	cmyk(0%, 69.9%, 67.6%, 31%)
CIE-LAB	lab(41.33, 49.86, 26.51)
CIE-LCH	lch(41.33, 56.47, 28.00°)
OKLab	oklab(51.35% 0.1464 0.0622)
OKLCH	oklch(51.35% 0.159 23)
XYZ	xyz(19.9182, 12.0746, 5.1519)
Luminance	0.1207 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03539 #35B0AC

analogous

#B03576 #B03539 #B06F35

triadic

#B03539 #39B035 #3539B0

tetradic

#B03539 #76B035 #35B0AC #6F35B0

square

#B03539 #76B035 #35B0AC #6F35B0

split-complementary

#B03539 #35B06F #3576B0

monochromatic

#52191B #81272A #B03539 #CC565A #DA8588

Accessibility & contrast

On white

6.15

#B03539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B03539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03539

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03539	#FFFFFF	#000000	##FFFFFF
##B03539	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575138

Deuteranopia (green-blind)

#766B35

Tritanopia (blue-blind)

#C11038

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03539;
/* rgb */ color: rgb(176, 53, 57);
/* oklch */ color: oklch(51.4% 0.159 23.0);

Tailwind

colors: {
  custom: {
    50: '#cf746f',
    500: '#b03539',
    950: '#000000',
  },
}

SCSS

$custom: #b03539;
$custom-light: #cf746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b03539",
  "rgb": {
    "r": 176,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 358.049,
    "s": 53.712,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51352,
    "c": 0.15905,
    "h": 23
  },
  "luminance": 0.12072
}

Semantic roles & 50–950 ramp

primary

#B03539

secondary

#7DC4C2

accent

#DDD84B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03539

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

Preview Lab → · Contrast checker → · Palette generator →