#B72F23#B72F23

#B72F23 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.7% C 0.175 H 29.4°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B72F23
RGB	rgb(183, 47, 35)
HSL	hsl(5, 68%, 43%)
HSV	hsv(5, 81%, 72%)
CMYK	cmyk(0%, 74.3%, 80.9%, 28.2%)
CIE-LAB	lab(41.57, 53.40, 39.87)
CIE-LCH	lch(41.57, 66.64, 36.74°)
OKLab	oklab(51.68% 0.1521 0.0858)
OKLCH	oklch(51.68% 0.175 29.4)
XYZ	xyz(20.8508, 12.2249, 2.8515)
Luminance	0.1222 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72F23 #23ABB7

analogous

#B72361 #B72F23 #B77923

triadic

#B72F23 #23B72F #2F23B7

tetradic

#B72F23 #61B723 #23ABB7 #7923B7

square

#B72F23 #61B723 #23ABB7 #7923B7

split-complementary

#B72F23 #23B779 #2361B7

monochromatic

#50150F #842219 #B72F23 #DA4A3D #E47A71

Accessibility & contrast

On white

6.10

#B72F23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B72F23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72F23

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72F23	#FFFFFF	#000000	##FFFFFF
##B72F23	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F20

Deuteranopia (green-blind)

#7A6D1C

Tritanopia (blue-blind)

#CA002E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72f23;
/* rgb */ color: rgb(183, 47, 35);
/* oklch */ color: oklch(51.7% 0.175 29.4);

Tailwind

colors: {
  custom: {
    50: '#d6725f',
    500: '#b72f23',
    950: '#000000',
  },
}

SCSS

$custom: #b72f23;
$custom-light: #d6725f;
$custom-dark: #000000;

JSON

{
  "hex": "#b72f23",
  "rgb": {
    "r": 183,
    "g": 47,
    "b": 35
  },
  "hsl": {
    "h": 4.865,
    "s": 67.89,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51682,
    "c": 0.17464,
    "h": 29.4
  },
  "luminance": 0.12222
}

Semantic roles & 50–950 ramp

primary

#B72F23

secondary

#6BC3CA

accent

#DDEB3D

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160805

muted

#847B79

Preview Lab

Preview with #B72F23

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

Preview Lab → · Contrast checker → · Palette generator →