#B03F25#B03F25

#B03F25 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.3% C 0.153 H 34.3°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#B03F25
RGB	rgb(176, 63, 37)
HSL	hsl(11, 65%, 42%)
HSV	hsv(11, 79%, 69%)
CMYK	cmyk(0%, 64.2%, 79%, 31%)
CIE-LAB	lab(42.64, 44.71, 39.46)
CIE-LCH	lch(42.64, 59.63, 41.43°)
OKLab	oklab(52.26% 0.1262 0.0862)
OKLCH	oklch(52.26% 0.153 34.3)
XYZ	xyz(20.0181, 12.9216, 3.1899)
Luminance	0.1292 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03F25 #2596B0

analogous

#B02551 #B03F25 #B08525

triadic

#B03F25 #25B03F #3F25B0

tetradic

#B03F25 #51B025 #2596B0 #8525B0

square

#B03F25 #51B025 #2596B0 #8525B0

split-complementary

#B03F25 #25B085 #2551B0

monochromatic

#4B1B10 #7D2D1A #B03F25 #D6593C #E1846F

Accessibility & contrast

On white

5.86

#B03F25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B03F25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03F25

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03F25	#FFFFFF	#000000	##FFFFFF
##B03F25	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5521

Deuteranopia (green-blind)

#7B6E21

Tritanopia (blue-blind)

#C2213A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03f25;
/* rgb */ color: rgb(176, 63, 37);
/* oklch */ color: oklch(52.3% 0.153 34.3);

Tailwind

colors: {
  custom: {
    50: '#d07961',
    500: '#b03f25',
    950: '#000000',
  },
}

SCSS

$custom: #b03f25;
$custom-light: #d07961;
$custom-dark: #000000;

JSON

{
  "hex": "#b03f25",
  "rgb": {
    "r": 176,
    "g": 63,
    "b": 37
  },
  "hsl": {
    "h": 11.223,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.52255,
    "c": 0.15277,
    "h": 34.3
  },
  "luminance": 0.12919
}

Semantic roles & 50–950 ramp

primary

#B03F25

secondary

#6AB6C7

accent

#C9E840

background

#FDF7F5

surface

#FBEEEA

border

#D4C9C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B03F25

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

Preview Lab → · Contrast checker → · Palette generator →