#B23B2A#B23B2A

#B23B2A is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.2% C 0.158 H 31.0°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B23B2A
RGB	rgb(178, 59, 42)
HSL	hsl(8, 62%, 43%)
HSV	hsv(8, 76%, 70%)
CMYK	cmyk(0%, 66.9%, 76.4%, 30.2%)
CIE-LAB	lab(42.40, 47.35, 36.61)
CIE-LCH	lch(42.40, 59.85, 37.71°)
OKLab	oklab(52.16% 0.1351 0.0812)
OKLCH	oklch(52.16% 0.158 31)
XYZ	xyz(20.3442, 12.7631, 3.5823)
Luminance	0.1276 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23B2A #2AA1B2

analogous

#B22A5D #B23B2A #B27F2A

triadic

#B23B2A #2AB23B #3B2AB2

tetradic

#B23B2A #5DB22A #2AA1B2 #7F2AB2

square

#B23B2A #5DB22A #2AA1B2 #7F2AB2

split-complementary

#B23B2A #2AB27F #2A5DB2

monochromatic

#4F1A13 #802B1E #B23B2A #D35846 #DF8477

Accessibility & contrast

On white

5.91

#B23B2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B23B2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23B2A

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23B2A	#FFFFFF	#000000	##FFFFFF
##B23B2A	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5427

Deuteranopia (green-blind)

#7A6E26

Tritanopia (blue-blind)

#C41838

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23b2a;
/* rgb */ color: rgb(178, 59, 42);
/* oklch */ color: oklch(52.2% 0.158 31.0);

Tailwind

colors: {
  custom: {
    50: '#d17765',
    500: '#b23b2a',
    950: '#000000',
  },
}

SCSS

$custom: #b23b2a;
$custom-light: #d17765;
$custom-dark: #000000;

JSON

{
  "hex": "#b23b2a",
  "rgb": {
    "r": 178,
    "g": 59,
    "b": 42
  },
  "hsl": {
    "h": 7.5,
    "s": 61.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52157,
    "c": 0.15767,
    "h": 31
  },
  "luminance": 0.1276
}

Semantic roles & 50–950 ramp

primary

#B23B2A

secondary

#71BCC7

accent

#D1E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B23B2A

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

Preview Lab → · Contrast checker → · Palette generator →