#B03123#B03123

#B03123 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.6% C 0.166 H 30.1°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX#B03123
RGBrgb(176, 49, 35)
HSLhsl(6, 67%, 41%)
HSVhsv(6, 80%, 69%)
CMYKcmyk(0%, 72.2%, 80.1%, 31%)
CIE-LABlab(40.49, 50.42, 38.35)
CIE-LCHlch(40.49, 63.35, 37.26°)
OKLaboklab(50.64% 0.1436 0.0831)
OKLCHoklch(50.64% 0.166 30.1)
XYZxyz(19.3085, 11.5511, 2.8027)
Luminance0.1155 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B03123 #23A2B0
analogous
#B0235C #B03123 #B07823
triadic
#B03123 #23B031 #3123B0
tetradic
#B03123 #5CB023 #23A2B0 #7823B0
square
#B03123 #5CB023 #23A2B0 #7823B0
split-complementary
#B03123 #23B078 #235CB0
monochromatic
#4A150F #7D2319 #B03123 #D84839 #E2776C

Accessibility & contrast

On white

6.35
#B03123 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.31
#B03123 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03123
6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B03123#FFFFFF#000000##FFFFFF
##B031231.006.353.316.35
#FFFFFF6.351.0021.001.00
#0000003.3121.001.0021.00
##FFFFFF6.351.0021.001.00

Color blindness preview

Protanopia (red-blind)
#574E20
Deuteranopia (green-blind)
#766A1D
Tritanopia (blue-blind)
#C2002F
Achromatopsia (no color)
#5F5F5F

Design tokens & code

CSS
--color: #b03123;
/* rgb */ color: rgb(176, 49, 35);
/* oklch */ color: oklch(50.6% 0.166 30.1);
Tailwind
colors: {
  custom: {
    50: '#d0725f',
    500: '#b03123',
    950: '#000000',
  },
}
SCSS
$custom: #b03123;
$custom-light: #d0725f;
$custom-dark: #000000;
JSON
{
  "hex": "#b03123",
  "rgb": {
    "r": 176,
    "g": 49,
    "b": 35
  },
  "hsl": {
    "h": 5.957,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50635,
    "c": 0.16588,
    "h": 30.1
  },
  "luminance": 0.11548
}

Semantic roles & 50–950 ramp

primary
#B03123
secondary
#67BEC8
accent
#D9EA3E
background
#FEF7F5
surface
#FCEDE9
border
#D5C8C5
text
#160805
muted
#847B79

Preview Lab

Preview with #B03123

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

Preview Lab → · Contrast checker → · Palette generator →

#B03123 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva