#B5302F#B5302F

#B5302F is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.6% C 0.170 H 25.8°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#B5302F
RGB	rgb(181, 48, 47)
HSL	hsl(0, 59%, 45%)
HSV	hsv(0, 74%, 71%)
CMYK	cmyk(0%, 73.5%, 74%, 29%)
CIE-LAB	lab(41.45, 52.86, 32.86)
CIE-LCH	lch(41.45, 62.24, 31.86°)
OKLab	oklab(51.56% 0.1531 0.0741)
OKLCH	oklch(51.56% 0.17 25.8)
XYZ	xyz(20.6285, 12.1461, 3.9470)
Luminance	0.1214 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5302F #2FB4B5

analogous

#B52F71 #B5302F #B5732F

triadic

#B5302F #2FB530 #302FB5

tetradic

#B5302F #71B52F #2FB4B5 #732FB5

square

#B5302F #71B52F #2FB4B5 #732FB5

split-complementary

#B5302F #2FB573 #2F71B5

monochromatic

#541616 #842322 #B5302F #D15150 #DE8180

Accessibility & contrast

On white

6.12

#B5302F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B5302F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5302F

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5302F	#FFFFFF	#000000	##FFFFFF
##B5302F	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F2D

Deuteranopia (green-blind)

#786C2A

Tritanopia (blue-blind)

#C70031

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b5302f;
/* rgb */ color: rgb(181, 48, 47);
/* oklch */ color: oklch(51.6% 0.170 25.8);

Tailwind

colors: {
  custom: {
    50: '#d47268',
    500: '#b5302f',
    950: '#000000',
  },
}

SCSS

$custom: #b5302f;
$custom-light: #d47268;
$custom-dark: #000000;

JSON

{
  "hex": "#b5302f",
  "rgb": {
    "r": 181,
    "g": 48,
    "b": 47
  },
  "hsl": {
    "h": 0.448,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51562,
    "c": 0.1701,
    "h": 25.8
  },
  "luminance": 0.12143
}

Semantic roles & 50–950 ramp

primary

#B5302F

secondary

#79C6C7

accent

#E1E246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B5302F

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

Preview Lab → · Contrast checker → · Palette generator →