#B03E25#B03E25

#B03E25 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.1% C 0.154 H 33.9°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B03E25
RGB	rgb(176, 62, 37)
HSL	hsl(11, 65%, 42%)
HSV	hsv(11, 79%, 69%)
CMYK	cmyk(0%, 64.8%, 79%, 31%)
CIE-LAB	lab(42.48, 45.15, 39.29)
CIE-LCH	lch(42.48, 59.85, 41.03°)
OKLab	oklab(52.13% 0.1275 0.0858)
OKLCH	oklch(52.13% 0.154 33.9)
XYZ	xyz(19.9633, 12.8118, 3.1716)
Luminance	0.1281 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03E25 #2597B0

analogous

#B02552 #B03E25 #B08325

triadic

#B03E25 #25B03E #3E25B0

tetradic

#B03E25 #52B025 #2597B0 #8325B0

square

#B03E25 #52B025 #2597B0 #8325B0

split-complementary

#B03E25 #25B083 #2552B0

monochromatic

#4B1A10 #7D2C1A #B03E25 #D6583C #E1836F

Accessibility & contrast

On white

5.90

#B03E25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B03E25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03E25

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03E25	#FFFFFF	#000000	##FFFFFF
##B03E25	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5421

Deuteranopia (green-blind)

#7B6E21

Tritanopia (blue-blind)

#C21F39

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b03e25;
/* rgb */ color: rgb(176, 62, 37);
/* oklch */ color: oklch(52.1% 0.154 33.9);

Tailwind

colors: {
  custom: {
    50: '#d07961',
    500: '#b03e25',
    950: '#000000',
  },
}

SCSS

$custom: #b03e25;
$custom-light: #d07961;
$custom-dark: #000000;

JSON

{
  "hex": "#b03e25",
  "rgb": {
    "r": 176,
    "g": 62,
    "b": 37
  },
  "hsl": {
    "h": 10.791,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.5213,
    "c": 0.15371,
    "h": 33.9
  },
  "luminance": 0.12809
}

Semantic roles & 50–950 ramp

primary

#B03E25

secondary

#6AB6C7

accent

#CAE840

background

#FDF7F5

surface

#FBEEEA

border

#D4C9C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B03E25

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

Preview Lab → · Contrast checker → · Palette generator →