#B03B23#B03B23

#B03B23 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.7% C 0.157 H 33.4°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B03B23
RGB	rgb(176, 59, 35)
HSL	hsl(10, 67%, 41%)
HSV	hsv(10, 80%, 69%)
CMYK	cmyk(0%, 66.5%, 80.1%, 31%)
CIE-LAB	lab(41.97, 46.39, 39.83)
CIE-LCH	lch(41.97, 61.14, 40.65°)
OKLab	oklab(51.74% 0.131 0.0864)
OKLCH	oklch(51.74% 0.157 33.4)
XYZ	xyz(19.7741, 12.4823, 2.9579)
Luminance	0.1248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03B23 #2398B0

analogous

#B02352 #B03B23 #B08223

triadic

#B03B23 #23B03B #3B23B0

tetradic

#B03B23 #52B023 #2398B0 #8223B0

square

#B03B23 #52B023 #2398B0 #8223B0

split-complementary

#B03B23 #23B082 #2352B0

monochromatic

#4A190F #7D2A19 #B03B23 #D85439 #E2806C

Accessibility & contrast

On white

6.01

#B03B23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B03B23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03B23

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03B23	#FFFFFF	#000000	##FFFFFF
##B03B23	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D531F

Deuteranopia (green-blind)

#7A6D1E

Tritanopia (blue-blind)

#C21836

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03b23;
/* rgb */ color: rgb(176, 59, 35);
/* oklch */ color: oklch(51.7% 0.157 33.4);

Tailwind

colors: {
  custom: {
    50: '#d07760',
    500: '#b03b23',
    950: '#000000',
  },
}

SCSS

$custom: #b03b23;
$custom-light: #d07760;
$custom-dark: #000000;

JSON

{
  "hex": "#b03b23",
  "rgb": {
    "r": 176,
    "g": 59,
    "b": 35
  },
  "hsl": {
    "h": 10.213,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51743,
    "c": 0.1569,
    "h": 33.4
  },
  "luminance": 0.12479
}

Semantic roles & 50–950 ramp

primary

#B03B23

secondary

#67B7C8

accent

#CDEA3E

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B03B23

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

Preview Lab → · Contrast checker → · Palette generator →