#B43733#B43733

#B43733 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.162 H 26.3°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B43733
RGB	rgb(180, 55, 51)
HSL	hsl(2, 56%, 45%)
HSV	hsv(2, 72%, 71%)
CMYK	cmyk(0%, 69.4%, 71.7%, 29.4%)
CIE-LAB	lab(42.27, 50.07, 31.41)
CIE-LCH	lch(42.27, 59.11, 32.10°)
OKLab	oklab(52.16% 0.1453 0.0718)
OKLCH	oklch(52.16% 0.162 26.3)
XYZ	xyz(20.7884, 12.6778, 4.4837)
Luminance	0.1268 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43733 #33B0B4

analogous

#B43370 #B43733 #B47733

triadic

#B43733 #33B437 #3733B4

tetradic

#B43733 #70B433 #33B0B4 #7733B4

square

#B43733 #70B433 #33B0B4 #7733B4

split-complementary

#B43733 #33B477 #3370B4

monochromatic

#551A18 #842825 #B43733 #CF5955 #DC8885

Accessibility & contrast

On white

5.94

#B43733 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B43733 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43733

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43733	#FFFFFF	#000000	##FFFFFF
##B43733	1.00	5.94	3.54	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5331

Deuteranopia (green-blind)

#7A6E2F

Tritanopia (blue-blind)

#C60F37

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43733;
/* rgb */ color: rgb(180, 55, 51);
/* oklch */ color: oklch(52.2% 0.162 26.3);

Tailwind

colors: {
  custom: {
    50: '#d2766b',
    500: '#b43733',
    950: '#000000',
  },
}

SCSS

$custom: #b43733;
$custom-light: #d2766b;
$custom-dark: #000000;

JSON

{
  "hex": "#b43733",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.86,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52162,
    "c": 0.16208,
    "h": 26.3
  },
  "luminance": 0.12675
}

Semantic roles & 50–950 ramp

primary

#B43733

secondary

#7DC4C6

accent

#DADF49

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B43733

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

Preview Lab → · Contrast checker → · Palette generator →