#B23733#B23733

#B23733 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.8% C 0.160 H 26.3°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#B23733
RGB	rgb(178, 55, 51)
HSL	hsl(2, 55%, 45%)
HSV	hsv(2, 71%, 70%)
CMYK	cmyk(0%, 69.1%, 71.3%, 30.2%)
CIE-LAB	lab(41.91, 49.41, 30.88)
CIE-LCH	lch(41.91, 58.27, 32.01°)
OKLab	oklab(51.82% 0.1435 0.0708)
OKLCH	oklch(51.82% 0.16 26.3)
XYZ	xyz(20.3260, 12.4394, 4.4621)
Luminance	0.1244 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23733 #33AEB2

analogous

#B2336E #B23733 #B27733

triadic

#B23733 #33B237 #3733B2

tetradic

#B23733 #6EB233 #33AEB2 #7733B2

square

#B23733 #6EB233 #33AEB2 #7733B2

split-complementary

#B23733 #33B277 #336EB2

monochromatic

#531A18 #822825 #B23733 #CE5854 #DC8684

Accessibility & contrast

On white

6.02

#B23733 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B23733 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23733

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23733	#FFFFFF	#000000	##FFFFFF
##B23733	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5231

Deuteranopia (green-blind)

#786D2F

Tritanopia (blue-blind)

#C41137

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b23733;
/* rgb */ color: rgb(178, 55, 51);
/* oklch */ color: oklch(51.8% 0.160 26.3);

Tailwind

colors: {
  custom: {
    50: '#d1756b',
    500: '#b23733',
    950: '#000000',
  },
}

SCSS

$custom: #b23733;
$custom-light: #d1756b;
$custom-dark: #000000;

JSON

{
  "hex": "#b23733",
  "rgb": {
    "r": 178,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.89,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51819,
    "c": 0.15996,
    "h": 26.3
  },
  "luminance": 0.12436
}

Semantic roles & 50–950 ramp

primary

#B23733

secondary

#7CC3C5

accent

#DADF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23733

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

Preview Lab → · Contrast checker → · Palette generator →