#B53130#B53130

#B53130 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.7% C 0.169 H 25.7°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#B53130
RGB	rgb(181, 49, 48)
HSL	hsl(0, 58%, 45%)
HSV	hsv(0, 73%, 71%)
CMYK	cmyk(0%, 72.9%, 73.5%, 29%)
CIE-LAB	lab(41.59, 52.54, 32.43)
CIE-LCH	lch(41.59, 61.75, 31.68°)
OKLab	oklab(51.67% 0.1523 0.0734)
OKLCH	oklch(51.67% 0.169 25.7)
XYZ	xyz(20.6902, 12.2369, 4.0683)
Luminance	0.1223 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53130 #30B4B5

analogous

#B53072 #B53130 #B57330

triadic

#B53130 #30B531 #3130B5

tetradic

#B53130 #72B530 #30B4B5 #7330B5

square

#B53130 #72B530 #30B4B5 #7330B5

split-complementary

#B53130 #30B573 #3072B5

monochromatic

#541716 #852423 #B53130 #D15251 #DE8282

Accessibility & contrast

On white

6.09

#B53130 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#B53130 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53130

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53130	#FFFFFF	#000000	##FFFFFF
##B53130	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502E

Deuteranopia (green-blind)

#786D2B

Tritanopia (blue-blind)

#C70032

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b53130;
/* rgb */ color: rgb(181, 49, 48);
/* oklch */ color: oklch(51.7% 0.169 25.7);

Tailwind

colors: {
  custom: {
    50: '#d37368',
    500: '#b53130',
    950: '#000000',
  },
}

SCSS

$custom: #b53130;
$custom-light: #d37368;
$custom-dark: #000000;

JSON

{
  "hex": "#b53130",
  "rgb": {
    "r": 181,
    "g": 49,
    "b": 48
  },
  "hsl": {
    "h": 0.451,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51673,
    "c": 0.1691,
    "h": 25.7
  },
  "luminance": 0.12234
}

Semantic roles & 50–950 ramp

primary

#B53130

secondary

#7AC6C7

accent

#E0E146

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53130

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

Preview Lab → · Contrast checker → · Palette generator →