#B03135#B03135

#B03135 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.9% C 0.163 H 23.6°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#B03135
RGB	rgb(176, 49, 53)
HSL	hsl(358, 56%, 44%)
HSV	hsv(358, 72%, 69%)
CMYK	cmyk(0%, 72.2%, 69.9%, 31%)
CIE-LAB	lab(40.71, 51.18, 28.18)
CIE-LCH	lch(40.71, 58.43, 28.84°)
OKLab	oklab(50.87% 0.1497 0.0653)
OKLCH	oklch(50.87% 0.163 23.6)
XYZ	xyz(19.6476, 11.6867, 4.5887)
Luminance	0.1168 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03135 #31B0AC

analogous

#B03175 #B03135 #B06D31

triadic

#B03135 #35B031 #3135B0

tetradic

#B03135 #75B031 #31B0AC #6D31B0

square

#B03135 #75B031 #31B0AC #6D31B0

split-complementary

#B03135 #31B06D #3175B0

monochromatic

#501618 #802427 #B03135 #CE5054 #DC8083

Accessibility & contrast

On white

6.29

#B03135 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B03135 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03135

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03135	#FFFFFF	#000000	##FFFFFF
##B03135	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F34

Deuteranopia (green-blind)

#756A31

Tritanopia (blue-blind)

#C10034

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b03135;
/* rgb */ color: rgb(176, 49, 53);
/* oklch */ color: oklch(50.9% 0.163 23.6);

Tailwind

colors: {
  custom: {
    50: '#cf726c',
    500: '#b03135',
    950: '#000000',
  },
}

SCSS

$custom: #b03135;
$custom-light: #cf726c;
$custom-dark: #000000;

JSON

{
  "hex": "#b03135",
  "rgb": {
    "r": 176,
    "g": 49,
    "b": 53
  },
  "hsl": {
    "h": 358.11,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50869,
    "c": 0.16335,
    "h": 23.6
  },
  "luminance": 0.11684
}

Semantic roles & 50–950 ramp

primary

#B03135

secondary

#78C5C2

accent

#E0DB48

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B03135

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

Preview Lab → · Contrast checker → · Palette generator →