#B03A28#B03A28

#B03A28 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.7% C 0.157 H 31.4°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX#B03A28
RGBrgb(176, 58, 40)
HSLhsl(8, 63%, 42%)
HSVhsv(8, 77%, 69%)
CMYKcmyk(0%, 67%, 77.3%, 31%)
CIE-LABlab(41.86, 47.00, 37.03)
CIE-LCHlch(41.86, 59.84, 38.23°)
OKLaboklab(51.68% 0.1339 0.0818)
OKLCHoklch(51.68% 0.157 31.4)
XYZxyz(19.8028, 12.4123, 3.3602)
Luminance0.1241 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B03A28 #289EB0
analogous
#B0285A #B03A28 #B07E28
triadic
#B03A28 #28B03A #3A28B0
tetradic
#B03A28 #5AB028 #289EB0 #7E28B0
square
#B03A28 #5AB028 #289EB0 #7E28B0
split-complementary
#B03A28 #28B07E #285AB0
monochromatic
#4C1911 #7E2A1D #B03A28 #D45541 #DF8173

Accessibility & contrast

On white

6.03
#B03A28 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.48
#B03A28 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03A28
6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B03A28#FFFFFF#000000##FFFFFF
##B03A281.006.033.486.03
#FFFFFF6.031.0021.001.00
#0000003.4821.001.0021.00
##FFFFFF6.031.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5C5225
Deuteranopia (green-blind)
#796C24
Tritanopia (blue-blind)
#C21737
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #b03a28;
/* rgb */ color: rgb(176, 58, 40);
/* oklch */ color: oklch(51.7% 0.157 31.4);
Tailwind
colors: {
  custom: {
    50: '#d07763',
    500: '#b03a28',
    950: '#000000',
  },
}
SCSS
$custom: #b03a28;
$custom-light: #d07763;
$custom-dark: #000000;
JSON
{
  "hex": "#b03a28",
  "rgb": {
    "r": 176,
    "g": 58,
    "b": 40
  },
  "hsl": {
    "h": 7.941,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51678,
    "c": 0.15685,
    "h": 31.4
  },
  "luminance": 0.12409
}

Semantic roles & 50–950 ramp

primary
#B03A28
secondary
#6DBBC6
accent
#D0E642
background
#FDF7F5
surface
#FBEDEA
border
#D4C8C6
text
#150905
muted
#837B79

Preview Lab

Preview with #B03A28

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

Preview Lab → · Contrast checker → · Palette generator →

#B03A28 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva