#B0283B#B0283B

#B0283B is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.1% C 0.171 H 18.8°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#B0283B
RGB	rgb(176, 40, 59)
HSL	hsl(352, 63%, 42%)
HSV	hsv(352, 77%, 69%)
CMYK	cmyk(0%, 77.3%, 66.5%, 31%)
CIE-LAB	lab(39.69, 54.62, 23.23)
CIE-LCH	lch(39.69, 59.35, 23.04°)
OKLab	oklab(50.14% 0.162 0.0551)
OKLCH	oklch(50.14% 0.171 18.8)
XYZ	xyz(19.4548, 11.0664, 5.2485)
Luminance	0.1106 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0283B #28B09D

analogous

#B0287F #B0283B #B05928

triadic

#B0283B #3BB028 #283BB0

tetradic

#B0283B #7FB028 #28B09D #5928B0

square

#B0283B #7FB028 #28B09D #5928B0

split-complementary

#B0283B #28B059 #287FB0

monochromatic

#4C111A #7E1D2A #B0283B #D44156 #DF7382

Accessibility & contrast

On white

6.54

#B0283B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#B0283B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0283B

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0283B	#FFFFFF	#000000	##FFFFFF
##B0283B	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B3B

Deuteranopia (green-blind)

#726837

Tritanopia (blue-blind)

#C10030

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b0283b;
/* rgb */ color: rgb(176, 40, 59);
/* oklch */ color: oklch(50.1% 0.171 18.8);

Tailwind

colors: {
  custom: {
    50: '#cf6e70',
    500: '#b0283b',
    950: '#000000',
  },
}

SCSS

$custom: #b0283b;
$custom-light: #cf6e70;
$custom-dark: #000000;

JSON

{
  "hex": "#b0283b",
  "rgb": {
    "r": 176,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 351.618,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50141,
    "c": 0.17109,
    "h": 18.8
  },
  "luminance": 0.11063
}

Semantic roles & 50–950 ramp

primary

#B0283B

secondary

#6DC6BA

accent

#E6CF42

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B0283B

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

Preview Lab → · Contrast checker → · Palette generator →