#B03B28#B03B28

#B03B28 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.156 H 31.8°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B03B28
RGB	rgb(176, 59, 40)
HSL	hsl(8, 63%, 42%)
HSV	hsv(8, 77%, 69%)
CMYK	cmyk(0%, 66.5%, 77.3%, 31%)
CIE-LAB	lab(42.02, 46.57, 37.20)
CIE-LCH	lch(42.02, 59.61, 38.61°)
OKLab	oklab(51.8% 0.1325 0.0821)
OKLCH	oklch(51.8% 0.156 31.8)
XYZ	xyz(19.8537, 12.5141, 3.3771)
Luminance	0.1251 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03B28 #289DB0

analogous

#B02859 #B03B28 #B07F28

triadic

#B03B28 #28B03B #3B28B0

tetradic

#B03B28 #59B028 #289DB0 #7F28B0

square

#B03B28 #59B028 #289DB0 #7F28B0

split-complementary

#B03B28 #28B07F #2859B0

monochromatic

#4C1A11 #7E2A1D #B03B28 #D45641 #DF8273

Accessibility & contrast

On white

6.00

#B03B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B03B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03B28

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03B28	#FFFFFF	#000000	##FFFFFF
##B03B28	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5325

Deuteranopia (green-blind)

#796D24

Tritanopia (blue-blind)

#C21937

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03b28;
/* rgb */ color: rgb(176, 59, 40);
/* oklch */ color: oklch(51.8% 0.156 31.8);

Tailwind

colors: {
  custom: {
    50: '#d07763',
    500: '#b03b28',
    950: '#000000',
  },
}

SCSS

$custom: #b03b28;
$custom-light: #d07763;
$custom-dark: #000000;

JSON

{
  "hex": "#b03b28",
  "rgb": {
    "r": 176,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 8.382,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51796,
    "c": 0.1559,
    "h": 31.8
  },
  "luminance": 0.12511
}

Semantic roles & 50–950 ramp

primary

#B03B28

secondary

#6DBAC6

accent

#CFE642

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B03B28

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

Preview Lab → · Contrast checker → · Palette generator →