#B03A23#B03A23

#B03A23 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.6% C 0.158 H 33.0°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B03A23
RGB	rgb(176, 58, 35)
HSL	hsl(10, 67%, 41%)
HSV	hsv(10, 80%, 69%)
CMYK	cmyk(0%, 67%, 80.1%, 31%)
CIE-LAB	lab(41.81, 46.82, 39.67)
CIE-LCH	lch(41.81, 61.37, 40.28°)
OKLab	oklab(51.63% 0.1323 0.086)
OKLCH	oklch(51.63% 0.158 33)
XYZ	xyz(19.7232, 12.3805, 2.9409)
Luminance	0.1238 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03A23 #2399B0

analogous

#B02353 #B03A23 #B08123

triadic

#B03A23 #23B03A #3A23B0

tetradic

#B03A23 #53B023 #2399B0 #8123B0

square

#B03A23 #53B023 #2399B0 #8123B0

split-complementary

#B03A23 #23B081 #2353B0

monochromatic

#4A180F #7D2919 #B03A23 #D85339 #E27F6C

Accessibility & contrast

On white

6.04

#B03A23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B03A23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03A23

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03A23	#FFFFFF	#000000	##FFFFFF
##B03A23	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C521F

Deuteranopia (green-blind)

#796C1E

Tritanopia (blue-blind)

#C21636

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03a23;
/* rgb */ color: rgb(176, 58, 35);
/* oklch */ color: oklch(51.6% 0.158 33.0);

Tailwind

colors: {
  custom: {
    50: '#d07660',
    500: '#b03a23',
    950: '#000000',
  },
}

SCSS

$custom: #b03a23;
$custom-light: #d07660;
$custom-dark: #000000;

JSON

{
  "hex": "#b03a23",
  "rgb": {
    "r": 176,
    "g": 58,
    "b": 35
  },
  "hsl": {
    "h": 9.787,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51625,
    "c": 0.15782,
    "h": 33
  },
  "luminance": 0.12378
}

Semantic roles & 50–950 ramp

primary

#B03A23

secondary

#67B8C8

accent

#CEEA3E

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B03A23

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

Preview Lab → · Contrast checker → · Palette generator →