#B7302D#B7302D

#B7302D is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.172 H 26.6°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B7302D
RGB	rgb(183, 48, 45)
HSL	hsl(1, 61%, 45%)
HSV	hsv(1, 75%, 72%)
CMYK	cmyk(0%, 73.8%, 75.4%, 28.2%)
CIE-LAB	lab(41.80, 53.41, 34.53)
CIE-LCH	lch(41.80, 63.60, 32.88°)
OKLab	oklab(51.89% 0.1542 0.0771)
OKLCH	oklch(51.89% 0.172 26.6)
XYZ	xyz(21.0615, 12.3739, 3.7615)
Luminance	0.1237 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7302D #2DB4B7

analogous

#B72D6F #B7302D #B7752D

triadic

#B7302D #2DB730 #302DB7

tetradic

#B7302D #6FB72D #2DB4B7 #752DB7

square

#B7302D #6FB72D #2DB4B7 #752DB7

split-complementary

#B7302D #2DB775 #2D6FB7

monochromatic

#551615 #862321 #B7302D #D3514E #DF817F

Accessibility & contrast

On white

6.04

#B7302D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B7302D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7302D

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7302D	#FFFFFF	#000000	##FFFFFF
##B7302D	1.00	6.04	3.47	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502B

Deuteranopia (green-blind)

#7A6D28

Tritanopia (blue-blind)

#CA0031

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b7302d;
/* rgb */ color: rgb(183, 48, 45);
/* oklch */ color: oklch(51.9% 0.172 26.6);

Tailwind

colors: {
  custom: {
    50: '#d57366',
    500: '#b7302d',
    950: '#000000',
  },
}

SCSS

$custom: #b7302d;
$custom-light: #d57366;
$custom-dark: #000000;

JSON

{
  "hex": "#b7302d",
  "rgb": {
    "r": 183,
    "g": 48,
    "b": 45
  },
  "hsl": {
    "h": 1.304,
    "s": 60.526,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5189,
    "c": 0.1724,
    "h": 26.6
  },
  "luminance": 0.12371
}

Semantic roles & 50–950 ramp

primary

#B7302D

secondary

#78C6C8

accent

#E0E444

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B7302D

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

Preview Lab → · Contrast checker → · Palette generator →