#B53930#B53930

#B53930 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.162 H 28.1°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B53930
RGB	rgb(181, 57, 48)
HSL	hsl(4, 58%, 45%)
HSV	hsv(4, 73%, 71%)
CMYK	cmyk(0%, 68.5%, 73.5%, 29%)
CIE-LAB	lab(42.71, 49.46, 33.71)
CIE-LCH	lch(42.71, 59.86, 34.27°)
OKLab	oklab(52.51% 0.1426 0.0762)
OKLCH	oklch(52.51% 0.162 28.1)
XYZ	xyz(21.0550, 12.9665, 4.1898)
Luminance	0.1296 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53930 #30ACB5

analogous

#B5306A #B53930 #B57B30

triadic

#B53930 #30B539 #3930B5

tetradic

#B53930 #6AB530 #30ACB5 #7B30B5

square

#B53930 #6AB530 #30ACB5 #7B30B5

split-complementary

#B53930 #30B57B #306AB5

monochromatic

#541B16 #852A23 #B53930 #D15A51 #DE8882

Accessibility & contrast

On white

5.85

#B53930 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B53930 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53930

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53930	#FFFFFF	#000000	##FFFFFF
##B53930	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C542E

Deuteranopia (green-blind)

#7B6F2C

Tritanopia (blue-blind)

#C71238

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b53930;
/* rgb */ color: rgb(181, 57, 48);
/* oklch */ color: oklch(52.5% 0.162 28.1);

Tailwind

colors: {
  custom: {
    50: '#d37769',
    500: '#b53930',
    950: '#000000',
  },
}

SCSS

$custom: #b53930;
$custom-light: #d37769;
$custom-dark: #000000;

JSON

{
  "hex": "#b53930",
  "rgb": {
    "r": 181,
    "g": 57,
    "b": 48
  },
  "hsl": {
    "h": 4.06,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52512,
    "c": 0.16169,
    "h": 28.1
  },
  "luminance": 0.12963
}

Semantic roles & 50–950 ramp

primary

#B53930

secondary

#7AC2C7

accent

#D7E146

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53930

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

Preview Lab → · Contrast checker → · Palette generator →