#B03528#B03528

#B03528 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.161 H 29.7°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B03528
RGB	rgb(176, 53, 40)
HSL	hsl(6, 63%, 42%)
HSV	hsv(6, 77%, 69%)
CMYK	cmyk(0%, 69.9%, 77.3%, 31%)
CIE-LAB	lab(41.11, 49.05, 36.23)
CIE-LCH	lch(41.11, 60.98, 36.45°)
OKLab	oklab(51.11% 0.1403 0.08)
OKLCH	oklch(51.11% 0.161 29.7)
XYZ	xyz(19.5628, 11.9325, 3.2802)
Luminance	0.1193 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03528 #28A3B0

analogous

#B0285F #B03528 #B07928

triadic

#B03528 #28B035 #3528B0

tetradic

#B03528 #5FB028 #28A3B0 #7928B0

square

#B03528 #5FB028 #28A3B0 #7928B0

split-complementary

#B03528 #28B079 #285FB0

monochromatic

#4C1711 #7E261D #B03528 #D44F41 #DF7E73

Accessibility & contrast

On white

6.20

#B03528 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B03528 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03528

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03528	#FFFFFF	#000000	##FFFFFF
##B03528	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)

#595025

Deuteranopia (green-blind)

#776B23

Tritanopia (blue-blind)

#C20733

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03528;
/* rgb */ color: rgb(176, 53, 40);
/* oklch */ color: oklch(51.1% 0.161 29.7);

Tailwind

colors: {
  custom: {
    50: '#d07463',
    500: '#b03528',
    950: '#000000',
  },
}

SCSS

$custom: #b03528;
$custom-light: #d07463;
$custom-dark: #000000;

JSON

{
  "hex": "#b03528",
  "rgb": {
    "r": 176,
    "g": 53,
    "b": 40
  },
  "hsl": {
    "h": 5.735,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51111,
    "c": 0.16149,
    "h": 29.7
  },
  "luminance": 0.1193
}

Semantic roles & 50–950 ramp

primary

#B03528

secondary

#6DBEC6

accent

#D6E642

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B03528

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

Preview Lab → · Contrast checker → · Palette generator →