#B6303A#B6303A

#B6303A is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.170 H 21.6°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#B6303A
RGB	rgb(182, 48, 58)
HSL	hsl(356, 58%, 45%)
HSV	hsv(356, 74%, 71%)
CMYK	cmyk(0%, 73.6%, 68.1%, 28.6%)
CIE-LAB	lab(41.79, 53.70, 26.72)
CIE-LCH	lch(41.79, 59.99, 26.46°)
OKLab	oklab(51.91% 0.1581 0.0626)
OKLCH	oklch(51.91% 0.17 21.6)
XYZ	xyz(21.1144, 12.3676, 5.2776)
Luminance	0.1236 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B6303A #30B6AC

analogous

#B6307D #B6303A #B66930

triadic

#B6303A #3AB630 #303AB6

tetradic

#B6303A #7DB630 #30B6AC #6930B6

square

#B6303A #7DB630 #30B6AC #6930B6

split-complementary

#B6303A #30B669 #307DB6

monochromatic

#55161B #86232B #B6303A #D1525B #DE8289

Accessibility & contrast

On white

6.05

#B6303A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B6303A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B6303A

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B6303A	#FFFFFF	#000000	##FFFFFF
##B6303A	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565039

Deuteranopia (green-blind)

#786D36

Tritanopia (blue-blind)

#C80035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b6303a;
/* rgb */ color: rgb(182, 48, 58);
/* oklch */ color: oklch(51.9% 0.170 21.6);

Tailwind

colors: {
  custom: {
    50: '#d47370',
    500: '#b6303a',
    950: '#000000',
  },
}

SCSS

$custom: #b6303a;
$custom-light: #d47370;
$custom-dark: #000000;

JSON

{
  "hex": "#b6303a",
  "rgb": {
    "r": 182,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 355.522,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51906,
    "c": 0.16998,
    "h": 21.6
  },
  "luminance": 0.12364
}

Semantic roles & 50–950 ramp

primary

#B6303A

secondary

#7BC7C2

accent

#E1D646

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B6303A

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

Preview Lab → · Contrast checker → · Palette generator →