#B03028#B03028

#B03028 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.6% C 0.166 H 28.2°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#B03028
RGB	rgb(176, 48, 40)
HSL	hsl(4, 63%, 42%)
HSV	hsv(4, 77%, 69%)
CMYK	cmyk(0%, 72.7%, 77.3%, 31%)
CIE-LAB	lab(40.41, 50.97, 35.49)
CIE-LCH	lch(40.41, 62.11, 34.85°)
OKLab	oklab(50.59% 0.1463 0.0784)
OKLCH	oklch(50.59% 0.166 28.2)
XYZ	xyz(19.3467, 11.5002, 3.2081)
Luminance	0.1150 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03028 #28A8B0

analogous

#B02864 #B03028 #B07428

triadic

#B03028 #28B030 #3028B0

tetradic

#B03028 #64B028 #28A8B0 #7428B0

square

#B03028 #64B028 #28A8B0 #7428B0

split-complementary

#B03028 #28B074 #2864B0

monochromatic

#4C1511 #7E221D #B03028 #D44A41 #DF7A73

Accessibility & contrast

On white

6.36

#B03028 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#B03028 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03028

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03028	#FFFFFF	#000000	##FFFFFF
##B03028	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D26

Deuteranopia (green-blind)

#766923

Tritanopia (blue-blind)

#C2002F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b03028;
/* rgb */ color: rgb(176, 48, 40);
/* oklch */ color: oklch(50.6% 0.166 28.2);

Tailwind

colors: {
  custom: {
    50: '#d07263',
    500: '#b03028',
    950: '#000000',
  },
}

SCSS

$custom: #b03028;
$custom-light: #d07263;
$custom-dark: #000000;

JSON

{
  "hex": "#b03028",
  "rgb": {
    "r": 176,
    "g": 48,
    "b": 40
  },
  "hsl": {
    "h": 3.529,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50589,
    "c": 0.16597,
    "h": 28.2
  },
  "luminance": 0.11497
}

Semantic roles & 50–950 ramp

primary

#B03028

secondary

#6DC1C6

accent

#DCE642

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B03028

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

Preview Lab → · Contrast checker → · Palette generator →