#B6303B#B6303B

#B6303B is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.170 H 21.2°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B6303B
RGB	rgb(182, 48, 59)
HSL	hsl(355, 58%, 45%)
HSV	hsv(355, 74%, 71%)
CMYK	cmyk(0%, 73.6%, 67.6%, 28.6%)
CIE-LAB	lab(41.81, 53.76, 26.13)
CIE-LCH	lch(41.81, 59.77, 25.93°)
OKLab	oklab(51.92% 0.1584 0.0614)
OKLCH	oklch(51.92% 0.17 21.2)
XYZ	xyz(21.1401, 12.3779, 5.4129)
Luminance	0.1237 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B6303B #30B6AB

analogous

#B6307E #B6303B #B66830

triadic

#B6303B #3BB630 #303BB6

tetradic

#B6303B #7EB630 #30B6AB #6830B6

square

#B6303B #7EB630 #30B6AB #6830B6

split-complementary

#B6303B #30B668 #307EB6

monochromatic

#55161C #86232B #B6303B #D1525C #DE828A

Accessibility & contrast

On white

6.04

#B6303B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B6303B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B6303B

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B6303B	#FFFFFF	#000000	##FFFFFF
##B6303B	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)

#56503A

Deuteranopia (green-blind)

#786D37

Tritanopia (blue-blind)

#C80035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b6303b;
/* rgb */ color: rgb(182, 48, 59);
/* oklch */ color: oklch(51.9% 0.170 21.2);

Tailwind

colors: {
  custom: {
    50: '#d47371',
    500: '#b6303b',
    950: '#000000',
  },
}

SCSS

$custom: #b6303b;
$custom-light: #d47371;
$custom-dark: #000000;

JSON

{
  "hex": "#b6303b",
  "rgb": {
    "r": 182,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 355.075,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51923,
    "c": 0.16992,
    "h": 21.2
  },
  "luminance": 0.12375
}

Semantic roles & 50–950 ramp

primary

#B6303B

secondary

#7BC7C1

accent

#E1D546

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B6303B

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

Preview Lab → · Contrast checker → · Palette generator →