#B03A2B#B03A2B

#B03A2B is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.7% C 0.156 H 30.4°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#B03A2B
RGB	rgb(176, 58, 43)
HSL	hsl(7, 61%, 43%)
HSV	hsv(7, 76%, 69%)
CMYK	cmyk(0%, 67%, 75.6%, 31%)
CIE-LAB	lab(41.90, 47.12, 35.40)
CIE-LCH	lch(41.90, 58.94, 36.91°)
OKLab	oklab(51.71% 0.1349 0.079)
OKLCH	oklch(51.71% 0.156 30.4)
XYZ	xyz(19.8558, 12.4335, 3.6394)
Luminance	0.1243 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03A2B #2BA1B0

analogous

#B02B5E #B03A2B #B07C2B

triadic

#B03A2B #2BB03A #3A2BB0

tetradic

#B03A2B #5EB02B #2BA1B0 #7C2BB0

square

#B03A2B #5EB02B #2BA1B0 #7C2BB0

split-complementary

#B03A2B #2BB07C #2B5EB0

monochromatic

#4E1A13 #7F2A1F #B03A2B #D25646 #DE8378

Accessibility & contrast

On white

6.02

#B03A2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B03A2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03A2B

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03A2B	#FFFFFF	#000000	##FFFFFF
##B03A2B	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5228

Deuteranopia (green-blind)

#796C27

Tritanopia (blue-blind)

#C21837

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03a2b;
/* rgb */ color: rgb(176, 58, 43);
/* oklch */ color: oklch(51.7% 0.156 30.4);

Tailwind

colors: {
  custom: {
    50: '#d07765',
    500: '#b03a2b',
    950: '#000000',
  },
}

SCSS

$custom: #b03a2b;
$custom-light: #d07765;
$custom-dark: #000000;

JSON

{
  "hex": "#b03a2b",
  "rgb": {
    "r": 176,
    "g": 58,
    "b": 43
  },
  "hsl": {
    "h": 6.767,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.51713,
    "c": 0.15628,
    "h": 30.4
  },
  "luminance": 0.12431
}

Semantic roles & 50–950 ramp

primary

#B03A2B

secondary

#71BCC6

accent

#D2E444

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B03A2B

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

Preview Lab → · Contrast checker → · Palette generator →