#B03F29#B03F29

#B03F29 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.3% C 0.152 H 33.0°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B03F29
RGB	rgb(176, 63, 41)
HSL	hsl(10, 62%, 43%)
HSV	hsv(10, 77%, 69%)
CMYK	cmyk(0%, 64.2%, 76.7%, 31%)
CIE-LAB	lab(42.68, 44.86, 37.35)
CIE-LCH	lch(42.68, 58.38, 39.78°)
OKLab	oklab(52.3% 0.1274 0.0827)
OKLCH	oklch(52.3% 0.152 33)
XYZ	xyz(20.0844, 12.9481, 3.5390)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03F29 #299AB0

analogous

#B02956 #B03F29 #B08329

triadic

#B03F29 #29B03F #3F29B0

tetradic

#B03F29 #56B029 #299AB0 #8329B0

square

#B03F29 #56B029 #299AB0 #8329B0

split-complementary

#B03F29 #29B083 #2956B0

monochromatic

#4D1B12 #7E2D1D #B03F29 #D35A43 #DF8675

Accessibility & contrast

On white

5.85

#B03F29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B03F29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03F29

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03F29	#FFFFFF	#000000	##FFFFFF
##B03F29	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)

#5F5526

Deuteranopia (green-blind)

#7B6E25

Tritanopia (blue-blind)

#C2213B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03f29;
/* rgb */ color: rgb(176, 63, 41);
/* oklch */ color: oklch(52.3% 0.152 33.0);

Tailwind

colors: {
  custom: {
    50: '#cf7964',
    500: '#b03f29',
    950: '#000000',
  },
}

SCSS

$custom: #b03f29;
$custom-light: #cf7964;
$custom-dark: #000000;

JSON

{
  "hex": "#b03f29",
  "rgb": {
    "r": 176,
    "g": 63,
    "b": 41
  },
  "hsl": {
    "h": 9.778,
    "s": 62.212,
    "l": 42.549
  },
  "oklch": {
    "l": 0.52298,
    "c": 0.1519,
    "h": 33
  },
  "luminance": 0.12945
}

Semantic roles & 50–950 ramp

primary

#B03F29

secondary

#6FB8C6

accent

#CBE543

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B03F29

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

Preview Lab → · Contrast checker → · Palette generator →