#B43B23#B43B23

#B43B23 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.4% C 0.161 H 33.1°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B43B23
RGB	rgb(180, 59, 35)
HSL	hsl(10, 67%, 42%)
HSV	hsv(10, 81%, 71%)
CMYK	cmyk(0%, 67.2%, 80.6%, 29.4%)
CIE-LAB	lab(42.70, 47.78, 40.79)
CIE-LCH	lch(42.70, 62.83, 40.48°)
OKLab	oklab(52.42% 0.1349 0.0881)
OKLCH	oklch(52.42% 0.161 33.1)
XYZ	xyz(20.6921, 12.9557, 3.0009)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43B23 #239CB4

analogous

#B42354 #B43B23 #B48423

triadic

#B43B23 #23B43B #3B23B4

tetradic

#B43B23 #54B423 #239CB4 #8423B4

square

#B43B23 #54B423 #239CB4 #8423B4

split-complementary

#B43B23 #23B484 #2354B4

monochromatic

#4E190F #812A19 #B43B23 #D9553B #E3826E

Accessibility & contrast

On white

5.85

#B43B23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B43B23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43B23

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43B23	#FFFFFF	#000000	##FFFFFF
##B43B23	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E541F

Deuteranopia (green-blind)

#7C6F1E

Tritanopia (blue-blind)

#C61536

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43b23;
/* rgb */ color: rgb(180, 59, 35);
/* oklch */ color: oklch(52.4% 0.161 33.1);

Tailwind

colors: {
  custom: {
    50: '#d37760',
    500: '#b43b23',
    950: '#000000',
  },
}

SCSS

$custom: #b43b23;
$custom-light: #d37760;
$custom-dark: #000000;

JSON

{
  "hex": "#b43b23",
  "rgb": {
    "r": 180,
    "g": 59,
    "b": 35
  },
  "hsl": {
    "h": 9.931,
    "s": 67.442,
    "l": 42.157
  },
  "oklch": {
    "l": 0.52422,
    "c": 0.16114,
    "h": 33.1
  },
  "luminance": 0.12953
}

Semantic roles & 50–950 ramp

primary

#B43B23

secondary

#69B9C9

accent

#CEEA3D

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B43B23

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

Preview Lab → · Contrast checker → · Palette generator →