#B43333#B43333

#B43333 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.7% C 0.166 H 25.1°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#B43333
RGB	rgb(180, 51, 51)
HSL	hsl(0, 56%, 45%)
HSV	hsv(0, 72%, 71%)
CMYK	cmyk(0%, 71.7%, 71.7%, 29.4%)
CIE-LAB	lab(41.71, 51.62, 30.75)
CIE-LCH	lch(41.71, 60.08, 30.78°)
OKLab	oklab(51.74% 0.1502 0.0704)
OKLCH	oklch(51.74% 0.166 25.1)
XYZ	xyz(20.6060, 12.3131, 4.4230)
Luminance	0.1231 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43333 #33B4B4

analogous

#B43373 #B43333 #B47333

triadic

#B43333 #33B433 #3333B4

tetradic

#B43333 #73B433 #33B4B4 #7333B4

square

#B43333 #73B433 #33B4B4 #7333B4

split-complementary

#B43333 #33B473 #3373B4

monochromatic

#551818 #842525 #B43333 #CF5555 #DC8585

Accessibility & contrast

On white

6.07

#B43333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B43333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43333

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43333	#FFFFFF	#000000	##FFFFFF
##B43333	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585132

Deuteranopia (green-blind)

#786D2F

Tritanopia (blue-blind)

#C60035

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b43333;
/* rgb */ color: rgb(180, 51, 51);
/* oklch */ color: oklch(51.7% 0.166 25.1);

Tailwind

colors: {
  custom: {
    50: '#d2746b',
    500: '#b43333',
    950: '#000000',
  },
}

SCSS

$custom: #b43333;
$custom-light: #d2746b;
$custom-dark: #000000;

JSON

{
  "hex": "#b43333",
  "rgb": {
    "r": 180,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.5174,
    "c": 0.16587,
    "h": 25.1
  },
  "luminance": 0.1231
}

Semantic roles & 50–950 ramp

primary

#B43333

secondary

#7DC6C6

accent

#DFDF49

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B43333

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

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