#B54537#B54537

#B54537 is a mid, vivid red. Relative luminance 0.144; OKLCH L 54.1% C 0.148 H 29.8°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#B54537
RGB	rgb(181, 69, 55)
HSL	hsl(7, 53%, 46%)
HSV	hsv(7, 70%, 71%)
CMYK	cmyk(0%, 61.9%, 69.6%, 29%)
CIE-LAB	lab(44.74, 44.59, 32.01)
CIE-LCH	lch(44.74, 54.89, 35.67°)
OKLab	oklab(54.07% 0.1288 0.0738)
OKLCH	oklch(54.07% 0.148 29.8)
XYZ	xyz(21.8760, 14.3588, 5.2333)
Luminance	0.1436 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B54537 #37A7B5

analogous

#B53768 #B54537 #B58437

triadic

#B54537 #37B545 #4537B5

tetradic

#B54537 #68B537 #37A7B5 #8437B5

square

#B54537 #68B537 #37A7B5 #8437B5

split-complementary

#B54537 #37B584 #3768B5

monochromatic

#57211A #863329 #B54537 #CD685C #DC948B

Accessibility & contrast

On white

5.42

#B54537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#B54537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B54537

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B54537	#FFFFFF	#000000	##FFFFFF
##B54537	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B35

Deuteranopia (green-blind)

#7F7334

Tritanopia (blue-blind)

#C72C42

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #b54537;
/* rgb */ color: rgb(181, 69, 55);
/* oklch */ color: oklch(54.1% 0.148 29.8);

Tailwind

colors: {
  custom: {
    50: '#d27d6e',
    500: '#b54537',
    950: '#000000',
  },
}

SCSS

$custom: #b54537;
$custom-light: #d27d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b54537",
  "rgb": {
    "r": 181,
    "g": 69,
    "b": 55
  },
  "hsl": {
    "h": 6.667,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.54067,
    "c": 0.14845,
    "h": 29.8
  },
  "luminance": 0.14356
}

Semantic roles & 50–950 ramp

primary

#B54537

secondary

#82BEC6

accent

#CDDD4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B54537

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

Preview Lab → · Contrast checker → · Palette generator →