#B53F25#B53F25

#B53F25 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.158 H 34.0°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B53F25
RGB	rgb(181, 63, 37)
HSL	hsl(11, 66%, 43%)
HSV	hsv(11, 80%, 71%)
CMYK	cmyk(0%, 65.2%, 79.6%, 29%)
CIE-LAB	lab(43.53, 46.49, 40.64)
CIE-LCH	lch(43.53, 61.75, 41.16°)
OKLab	oklab(53.09% 0.1312 0.0883)
OKLCH	oklch(53.09% 0.158 34)
XYZ	xyz(21.1699, 13.5154, 3.2439)
Luminance	0.1351 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53F25 #259BB5

analogous

#B52553 #B53F25 #B58725

triadic

#B53F25 #25B53F #3F25B5

tetradic

#B53F25 #53B525 #259BB5 #8725B5

square

#B53F25 #53B525 #259BB5 #8725B5

split-complementary

#B53F25 #25B587 #2553B5

monochromatic

#4F1C10 #822D1B #B53F25 #D85B3F #E28672

Accessibility & contrast

On white

5.67

#B53F25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B53F25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53F25

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53F25	#FFFFFF	#000000	##FFFFFF
##B53F25	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615621

Deuteranopia (green-blind)

#7E7120

Tritanopia (blue-blind)

#C71E3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53f25;
/* rgb */ color: rgb(181, 63, 37);
/* oklch */ color: oklch(53.1% 0.158 34.0);

Tailwind

colors: {
  custom: {
    50: '#d47a61',
    500: '#b53f25',
    950: '#000000',
  },
}

SCSS

$custom: #b53f25;
$custom-light: #d47a61;
$custom-dark: #000000;

JSON

{
  "hex": "#b53f25",
  "rgb": {
    "r": 181,
    "g": 63,
    "b": 37
  },
  "hsl": {
    "h": 10.833,
    "s": 66.055,
    "l": 42.745
  },
  "oklch": {
    "l": 0.53088,
    "c": 0.15815,
    "h": 34
  },
  "luminance": 0.13512
}

Semantic roles & 50–950 ramp

primary

#B53F25

secondary

#6DB8C9

accent

#CAE93F

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B53F25

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

Preview Lab → · Contrast checker → · Palette generator →