#B03F3C#B03F3C

#B03F3C is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.148 H 25.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#B03F3C
RGB	rgb(176, 63, 60)
HSL	hsl(2, 49%, 46%)
HSV	hsv(2, 66%, 69%)
CMYK	cmyk(0%, 64.2%, 65.9%, 31%)
CIE-LAB	lab(42.93, 45.82, 26.68)
CIE-LCH	lch(42.93, 53.02, 30.21°)
OKLab	oklab(52.57% 0.1342 0.063)
OKLCH	oklch(52.57% 0.148 25.1)
XYZ	xyz(20.4997, 13.1142, 5.7259)
Luminance	0.1311 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03F3C #3CADB0

analogous

#B03C73 #B03F3C #B0793C

triadic

#B03F3C #3CB03F #3F3CB0

tetradic

#B03F3C #73B03C #3CADB0 #793CB0

square

#B03F3C #73B03C #3CADB0 #793CB0

split-complementary

#B03F3C #3CB079 #3C73B0

monochromatic

#551E1D #822F2C #B03F3C #C96360 #D8908E

Accessibility & contrast

On white

5.80

#B03F3C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B03F3C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03F3C

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03F3C	#FFFFFF	#000000	##FFFFFF
##B03F3C	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D563B

Deuteranopia (green-blind)

#796E39

Tritanopia (blue-blind)

#C1253F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03f3c;
/* rgb */ color: rgb(176, 63, 60);
/* oklch */ color: oklch(52.6% 0.148 25.1);

Tailwind

colors: {
  custom: {
    50: '#ce7a72',
    500: '#b03f3c',
    950: '#000000',
  },
}

SCSS

$custom: #b03f3c;
$custom-light: #ce7a72;
$custom-dark: #000000;

JSON

{
  "hex": "#b03f3c",
  "rgb": {
    "r": 176,
    "g": 63,
    "b": 60
  },
  "hsl": {
    "h": 1.552,
    "s": 49.153,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52566,
    "c": 0.14828,
    "h": 25.1
  },
  "luminance": 0.13111
}

Semantic roles & 50–950 ramp

primary

#B03F3C

secondary

#85C2C3

accent

#D5D94F

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03F3C

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

Preview Lab → · Contrast checker → · Palette generator →