#B74537#B74537

#B74537 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.4% C 0.151 H 29.8°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#B74537
RGB	rgb(183, 69, 55)
HSL	hsl(7, 54%, 47%)
HSV	hsv(7, 70%, 72%)
CMYK	cmyk(0%, 62.3%, 69.9%, 28.2%)
CIE-LAB	lab(45.08, 45.31, 32.50)
CIE-LCH	lch(45.08, 55.76, 35.65°)
OKLab	oklab(54.39% 0.1308 0.0748)
OKLCH	oklch(54.39% 0.151 29.8)
XYZ	xyz(22.3484, 14.6024, 5.2554)
Luminance	0.1460 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B74537 #37A9B7

analogous

#B73769 #B74537 #B78537

triadic

#B74537 #37B745 #4537B7

tetradic

#B74537 #69B737 #37A9B7 #8537B7

square

#B74537 #69B737 #37A9B7 #8537B7

split-complementary

#B74537 #37B785 #3769B7

monochromatic

#59221B #883329 #B74537 #CE695D #DC958C

Accessibility & contrast

On white

5.36

#B74537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#B74537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B74537

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B74537	#FFFFFF	#000000	##FFFFFF
##B74537	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B35

Deuteranopia (green-blind)

#807434

Tritanopia (blue-blind)

#C92B42

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #b74537;
/* rgb */ color: rgb(183, 69, 55);
/* oklch */ color: oklch(54.4% 0.151 29.8);

Tailwind

colors: {
  custom: {
    50: '#d47e6e',
    500: '#b74537',
    950: '#000000',
  },
}

SCSS

$custom: #b74537;
$custom-light: #d47e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b74537",
  "rgb": {
    "r": 183,
    "g": 69,
    "b": 55
  },
  "hsl": {
    "h": 6.562,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54389,
    "c": 0.15068,
    "h": 29.8
  },
  "luminance": 0.14599
}

Semantic roles & 50–950 ramp

primary

#B74537

secondary

#83BFC7

accent

#CDDD4B

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B74537

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

Preview Lab → · Contrast checker → · Palette generator →