#B53F30#B53F30

#B53F30 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.156 H 30.2°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B53F30
RGB	rgb(181, 63, 48)
HSL	hsl(7, 58%, 45%)
HSV	hsv(7, 73%, 71%)
CMYK	cmyk(0%, 65.2%, 73.5%, 29%)
CIE-LAB	lab(43.65, 46.94, 34.76)
CIE-LCH	lch(43.65, 58.41, 36.52°)
OKLab	oklab(53.21% 0.1347 0.0785)
OKLCH	oklch(53.21% 0.156 30.2)
XYZ	xyz(21.3694, 13.5952, 4.2946)
Luminance	0.1359 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53F30 #30A6B5

analogous

#B53063 #B53F30 #B58230

triadic

#B53F30 #30B53F #3F30B5

tetradic

#B53F30 #63B530 #30A6B5 #8230B5

square

#B53F30 #63B530 #30A6B5 #8230B5

split-complementary

#B53F30 #30B582 #3063B5

monochromatic

#541D16 #852E23 #B53F30 #D16051 #DE8C82

Accessibility & contrast

On white

5.65

#B53F30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B53F30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53F30

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53F30	#FFFFFF	#000000	##FFFFFF
##B53F30	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60572E

Deuteranopia (green-blind)

#7D712C

Tritanopia (blue-blind)

#C7203C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53f30;
/* rgb */ color: rgb(181, 63, 48);
/* oklch */ color: oklch(53.2% 0.156 30.2);

Tailwind

colors: {
  custom: {
    50: '#d37a69',
    500: '#b53f30',
    950: '#000000',
  },
}

SCSS

$custom: #b53f30;
$custom-light: #d37a69;
$custom-dark: #000000;

JSON

{
  "hex": "#b53f30",
  "rgb": {
    "r": 181,
    "g": 63,
    "b": 48
  },
  "hsl": {
    "h": 6.767,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.53213,
    "c": 0.15589,
    "h": 30.2
  },
  "luminance": 0.13592
}

Semantic roles & 50–950 ramp

primary

#B53F30

secondary

#7ABEC7

accent

#D0E146

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B53F30

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

Preview Lab → · Contrast checker → · Palette generator →