#B74531#B74531

#B74531 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.3% C 0.152 H 32.1°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#B74531
RGB	rgb(183, 69, 49)
HSL	hsl(9, 58%, 45%)
HSV	hsv(9, 73%, 72%)
CMYK	cmyk(0%, 62.3%, 73.2%, 28.2%)
CIE-LAB	lab(45.01, 45.01, 35.82)
CIE-LCH	lch(45.01, 57.52, 38.51°)
OKLab	oklab(54.31% 0.1287 0.0809)
OKLCH	oklch(54.31% 0.152 32.1)
XYZ	xyz(22.2133, 14.5484, 4.5436)
Luminance	0.1454 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B74531 #31A3B7

analogous

#B73160 #B74531 #B78831

triadic

#B74531 #31B745 #4531B7

tetradic

#B74531 #60B731 #31A3B7 #8831B7

square

#B74531 #60B731 #31A3B7 #8831B7

split-complementary

#B74531 #31B788 #3160B7

monochromatic

#562117 #873324 #B74531 #D16754 #DE9284

Accessibility & contrast

On white

5.37

#B74531 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#B74531 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B74531

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B74531	#FFFFFF	#000000	##FFFFFF
##B74531	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B2E

Deuteranopia (green-blind)

#81742D

Tritanopia (blue-blind)

#C92A41

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #b74531;
/* rgb */ color: rgb(183, 69, 49);
/* oklch */ color: oklch(54.3% 0.152 32.1);

Tailwind

colors: {
  custom: {
    50: '#d47d6a',
    500: '#b74531',
    950: '#000000',
  },
}

SCSS

$custom: #b74531;
$custom-light: #d47d6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b74531",
  "rgb": {
    "r": 183,
    "g": 69,
    "b": 49
  },
  "hsl": {
    "h": 8.955,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.54308,
    "c": 0.15199,
    "h": 32.1
  },
  "luminance": 0.14545
}

Semantic roles & 50–950 ramp

primary

#B74531

secondary

#7CBCC8

accent

#CAE147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B74531

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

Preview Lab → · Contrast checker → · Palette generator →