#B23B29#B23B29

#B23B29 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.1% C 0.158 H 31.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B23B29
RGB	rgb(178, 59, 41)
HSL	hsl(8, 63%, 43%)
HSV	hsv(8, 77%, 70%)
CMYK	cmyk(0%, 66.9%, 77%, 30.2%)
CIE-LAB	lab(42.39, 47.31, 37.15)
CIE-LCH	lch(42.39, 60.15, 38.14°)
OKLab	oklab(52.15% 0.1348 0.0821)
OKLCH	oklch(52.15% 0.158 31.4)
XYZ	xyz(20.3266, 12.7560, 3.4892)
Luminance	0.1275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23B29 #29A0B2

analogous

#B2295C #B23B29 #B27F29

triadic

#B23B29 #29B23B #3B29B2

tetradic

#B23B29 #5CB229 #29A0B2 #7F29B2

square

#B23B29 #5CB229 #29A0B2 #7F29B2

split-complementary

#B23B29 #29B27F #295CB2

monochromatic

#4F1A12 #802B1E #B23B29 #D45744 #DF8476

Accessibility & contrast

On white

5.91

#B23B29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B23B29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23B29

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23B29	#FFFFFF	#000000	##FFFFFF
##B23B29	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)

#5D5326

Deuteranopia (green-blind)

#7A6E25

Tritanopia (blue-blind)

#C41838

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23b29;
/* rgb */ color: rgb(178, 59, 41);
/* oklch */ color: oklch(52.1% 0.158 31.4);

Tailwind

colors: {
  custom: {
    50: '#d17764',
    500: '#b23b29',
    950: '#000000',
  },
}

SCSS

$custom: #b23b29;
$custom-light: #d17764;
$custom-dark: #000000;

JSON

{
  "hex": "#b23b29",
  "rgb": {
    "r": 178,
    "g": 59,
    "b": 41
  },
  "hsl": {
    "h": 7.883,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.52146,
    "c": 0.15786,
    "h": 31.4
  },
  "luminance": 0.12753
}

Semantic roles & 50–950 ramp

primary

#B23B29

secondary

#70BCC7

accent

#D0E642

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B23B29

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

Preview Lab → · Contrast checker → · Palette generator →