#B6303F#B6303F

#B6303F is a mid, vivid red. Relative luminance 0.124; OKLCH L 52.0% C 0.170 H 19.5°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B6303F
RGB	rgb(182, 48, 63)
HSL	hsl(353, 58%, 45%)
HSV	hsv(353, 74%, 71%)
CMYK	cmyk(0%, 73.6%, 65.4%, 28.6%)
CIE-LAB	lab(41.88, 53.98, 23.76)
CIE-LCH	lch(41.88, 58.98, 23.76°)
OKLab	oklab(51.99% 0.16 0.0566)
OKLCH	oklch(51.99% 0.17 19.5)
XYZ	xyz(21.2478, 12.4210, 5.9803)
Luminance	0.1242 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B6303F #30B6A7

analogous

#B63082 #B6303F #B66430

triadic

#B6303F #3FB630 #303FB6

tetradic

#B6303F #82B630 #30B6A7 #6430B6

square

#B6303F #82B630 #30B6A7 #6430B6

split-complementary

#B6303F #30B664 #3082B6

monochromatic

#55161D #86232E #B6303F #D15260 #DE828D

Accessibility & contrast

On white

6.03

#B6303F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B6303F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B6303F

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B6303F	#FFFFFF	#000000	##FFFFFF
##B6303F	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56513F

Deuteranopia (green-blind)

#776D3B

Tritanopia (blue-blind)

#C80037

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b6303f;
/* rgb */ color: rgb(182, 48, 63);
/* oklch */ color: oklch(52.0% 0.170 19.5);

Tailwind

colors: {
  custom: {
    50: '#d37374',
    500: '#b6303f',
    950: '#000000',
  },
}

SCSS

$custom: #b6303f;
$custom-light: #d37374;
$custom-dark: #000000;

JSON

{
  "hex": "#b6303f",
  "rgb": {
    "r": 182,
    "g": 48,
    "b": 63
  },
  "hsl": {
    "h": 353.284,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51994,
    "c": 0.16969,
    "h": 19.5
  },
  "luminance": 0.12418
}

Semantic roles & 50–950 ramp

primary

#B6303F

secondary

#7BC7BF

accent

#E1D046

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B6303F

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

Preview Lab → · Contrast checker → · Palette generator →