#B73F30#B73F30

#B73F30 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.158 H 30.2°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#B73F30
RGB	rgb(183, 63, 48)
HSL	hsl(7, 58%, 45%)
HSV	hsv(7, 74%, 72%)
CMYK	cmyk(0%, 65.6%, 73.8%, 28.2%)
CIE-LAB	lab(44.00, 47.63, 35.25)
CIE-LCH	lch(44.00, 59.26, 36.50°)
OKLab	oklab(53.55% 0.1367 0.0794)
OKLCH	oklch(53.55% 0.158 30.2)
XYZ	xyz(21.8418, 13.8388, 4.3168)
Luminance	0.1384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73F30 #30A8B7

analogous

#B73064 #B73F30 #B78330

triadic

#B73F30 #30B73F #3F30B7

tetradic

#B73F30 #64B730 #30A8B7 #8330B7

square

#B73F30 #64B730 #30A8B7 #8330B7

split-complementary

#B73F30 #30B783 #3064B7

monochromatic

#561E17 #872E23 #B73F30 #D26152 #DE8D83

Accessibility & contrast

On white

5.57

#B73F30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B73F30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73F30

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73F30	#FFFFFF	#000000	##FFFFFF
##B73F30	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61572E

Deuteranopia (green-blind)

#7E722C

Tritanopia (blue-blind)

#C91F3C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73f30;
/* rgb */ color: rgb(183, 63, 48);
/* oklch */ color: oklch(53.5% 0.158 30.2);

Tailwind

colors: {
  custom: {
    50: '#d47a69',
    500: '#b73f30',
    950: '#000000',
  },
}

SCSS

$custom: #b73f30;
$custom-light: #d47a69;
$custom-dark: #000000;

JSON

{
  "hex": "#b73f30",
  "rgb": {
    "r": 183,
    "g": 63,
    "b": 48
  },
  "hsl": {
    "h": 6.667,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.53545,
    "c": 0.15806,
    "h": 30.2
  },
  "luminance": 0.13836
}

Semantic roles & 50–950 ramp

primary

#B73F30

secondary

#7BBFC8

accent

#D0E246

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B73F30

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

Preview Lab → · Contrast checker → · Palette generator →