#B03628#B03628

#B03628 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.2% C 0.161 H 30.0°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B03628
RGB	rgb(176, 54, 40)
HSL	hsl(6, 63%, 42%)
HSV	hsv(6, 77%, 69%)
CMYK	cmyk(0%, 69.3%, 77.3%, 31%)
CIE-LAB	lab(41.26, 48.65, 36.39)
CIE-LCH	lch(41.26, 60.76, 36.79°)
OKLab	oklab(51.22% 0.139 0.0804)
OKLCH	oklch(51.22% 0.161 30)
XYZ	xyz(19.6089, 12.0246, 3.2955)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03628 #28A2B0

analogous

#B0285E #B03628 #B07A28

triadic

#B03628 #28B036 #3628B0

tetradic

#B03628 #5EB028 #28A2B0 #7A28B0

square

#B03628 #5EB028 #28A2B0 #7A28B0

split-complementary

#B03628 #28B07A #285EB0

monochromatic

#4C1711 #7E271D #B03628 #D45041 #DF7E73

Accessibility & contrast

On white

6.17

#B03628 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B03628 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03628

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03628	#FFFFFF	#000000	##FFFFFF
##B03628	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595025

Deuteranopia (green-blind)

#786B23

Tritanopia (blue-blind)

#C20B34

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03628;
/* rgb */ color: rgb(176, 54, 40);
/* oklch */ color: oklch(51.2% 0.161 30.0);

Tailwind

colors: {
  custom: {
    50: '#d07463',
    500: '#b03628',
    950: '#000000',
  },
}

SCSS

$custom: #b03628;
$custom-light: #d07463;
$custom-dark: #000000;

JSON

{
  "hex": "#b03628",
  "rgb": {
    "r": 176,
    "g": 54,
    "b": 40
  },
  "hsl": {
    "h": 6.176,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51221,
    "c": 0.16058,
    "h": 30
  },
  "luminance": 0.12022
}

Semantic roles & 50–950 ramp

primary

#B03628

secondary

#6DBDC6

accent

#D5E642

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B03628

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

Preview Lab → · Contrast checker → · Palette generator →