#B03523#B03523

#B03523 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.162 H 31.3°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#B03523
RGB	rgb(176, 53, 35)
HSL	hsl(8, 67%, 41%)
HSV	hsv(8, 80%, 69%)
CMYK	cmyk(0%, 69.9%, 80.1%, 31%)
CIE-LAB	lab(41.06, 48.87, 38.92)
CIE-LCH	lch(41.06, 62.47, 38.53°)
OKLab	oklab(51.06% 0.1387 0.0844)
OKLCH	oklch(51.06% 0.162 31.3)
XYZ	xyz(19.4832, 11.9006, 2.8609)
Luminance	0.1190 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03523 #239EB0

analogous

#B02357 #B03523 #B07C23

triadic

#B03523 #23B035 #3523B0

tetradic

#B03523 #57B023 #239EB0 #7C23B0

square

#B03523 #57B023 #239EB0 #7C23B0

split-complementary

#B03523 #23B07C #2357B0

monochromatic

#4A160F #7D2619 #B03523 #D84D39 #E27B6C

Accessibility & contrast

On white

6.21

#B03523 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B03523 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03523

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03523	#FFFFFF	#000000	##FFFFFF
##B03523	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595020

Deuteranopia (green-blind)

#786B1E

Tritanopia (blue-blind)

#C20532

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03523;
/* rgb */ color: rgb(176, 53, 35);
/* oklch */ color: oklch(51.1% 0.162 31.3);

Tailwind

colors: {
  custom: {
    50: '#d0745f',
    500: '#b03523',
    950: '#000000',
  },
}

SCSS

$custom: #b03523;
$custom-light: #d0745f;
$custom-dark: #000000;

JSON

{
  "hex": "#b03523",
  "rgb": {
    "r": 176,
    "g": 53,
    "b": 35
  },
  "hsl": {
    "h": 7.66,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51057,
    "c": 0.16236,
    "h": 31.3
  },
  "luminance": 0.11898
}

Semantic roles & 50–950 ramp

primary

#B03523

secondary

#67BBC8

accent

#D4EA3E

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B03523

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

Preview Lab → · Contrast checker → · Palette generator →