#B03B25#B03B25

#B03B25 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.157 H 32.8°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B03B25
RGB	rgb(176, 59, 37)
HSL	hsl(9, 65%, 42%)
HSV	hsv(9, 79%, 69%)
CMYK	cmyk(0%, 66.5%, 79%, 31%)
CIE-LAB	lab(41.99, 46.46, 38.79)
CIE-LCH	lch(41.99, 60.53, 39.86°)
OKLab	oklab(51.76% 0.1316 0.0847)
OKLCH	oklch(51.76% 0.157 32.8)
XYZ	xyz(19.8046, 12.4945, 3.1188)
Luminance	0.1249 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03B25 #259AB0

analogous

#B02555 #B03B25 #B08025

triadic

#B03B25 #25B03B #3B25B0

tetradic

#B03B25 #55B025 #259AB0 #8025B0

square

#B03B25 #55B025 #259AB0 #8025B0

split-complementary

#B03B25 #25B080 #2555B0

monochromatic

#4B1910 #7D2A1A #B03B25 #D6553C #E1816F

Accessibility & contrast

On white

6.00

#B03B25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B03B25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03B25

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03B25	#FFFFFF	#000000	##FFFFFF
##B03B25	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5322

Deuteranopia (green-blind)

#796D20

Tritanopia (blue-blind)

#C21837

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03b25;
/* rgb */ color: rgb(176, 59, 37);
/* oklch */ color: oklch(51.8% 0.157 32.8);

Tailwind

colors: {
  custom: {
    50: '#d07761',
    500: '#b03b25',
    950: '#000000',
  },
}

SCSS

$custom: #b03b25;
$custom-light: #d07761;
$custom-dark: #000000;

JSON

{
  "hex": "#b03b25",
  "rgb": {
    "r": 176,
    "g": 59,
    "b": 37
  },
  "hsl": {
    "h": 9.496,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.51764,
    "c": 0.15651,
    "h": 32.8
  },
  "luminance": 0.12492
}

Semantic roles & 50–950 ramp

primary

#B03B25

secondary

#6AB8C7

accent

#CEE840

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B03B25

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

Preview Lab → · Contrast checker → · Palette generator →