#B03529#B03529

#B03529 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.161 H 29.4°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B03529
RGB	rgb(176, 53, 41)
HSL	hsl(5, 62%, 43%)
HSV	hsv(5, 77%, 69%)
CMYK	cmyk(0%, 69.9%, 76.7%, 31%)
CIE-LAB	lab(41.12, 49.09, 35.68)
CIE-LCH	lch(41.12, 60.69, 36.01°)
OKLab	oklab(51.12% 0.1406 0.0791)
OKLCH	oklch(51.12% 0.161 29.4)
XYZ	xyz(19.5801, 11.9393, 3.3709)
Luminance	0.1194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03529 #29A4B0

analogous

#B02961 #B03529 #B07829

triadic

#B03529 #29B035 #3529B0

tetradic

#B03529 #61B029 #29A4B0 #7829B0

square

#B03529 #61B029 #29A4B0 #7829B0

split-complementary

#B03529 #29B078 #2961B0

monochromatic

#4D1712 #7E261D #B03529 #D35043 #DF7E75

Accessibility & contrast

On white

6.20

#B03529 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B03529 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03529

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03529	#FFFFFF	#000000	##FFFFFF
##B03529	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595027

Deuteranopia (green-blind)

#776B24

Tritanopia (blue-blind)

#C20833

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03529;
/* rgb */ color: rgb(176, 53, 41);
/* oklch */ color: oklch(51.1% 0.161 29.4);

Tailwind

colors: {
  custom: {
    50: '#d07464',
    500: '#b03529',
    950: '#000000',
  },
}

SCSS

$custom: #b03529;
$custom-light: #d07464;
$custom-dark: #000000;

JSON

{
  "hex": "#b03529",
  "rgb": {
    "r": 176,
    "g": 53,
    "b": 41
  },
  "hsl": {
    "h": 5.333,
    "s": 62.212,
    "l": 42.549
  },
  "oklch": {
    "l": 0.51123,
    "c": 0.16133,
    "h": 29.4
  },
  "luminance": 0.11936
}

Semantic roles & 50–950 ramp

primary

#B03529

secondary

#6FBEC6

accent

#D7E543

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B03529

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

Preview Lab → · Contrast checker → · Palette generator →