#B03525#B03525

#B03525 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.162 H 30.7°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#B03525
RGB	rgb(176, 53, 37)
HSL	hsl(7, 65%, 42%)
HSV	hsv(7, 79%, 69%)
CMYK	cmyk(0%, 69.9%, 79%, 31%)
CIE-LAB	lab(41.08, 48.94, 37.86)
CIE-LCH	lch(41.08, 61.88, 37.72°)
OKLab	oklab(51.08% 0.1393 0.0827)
OKLCH	oklch(51.08% 0.162 30.7)
XYZ	xyz(19.5138, 11.9128, 3.0218)
Luminance	0.1191 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03525 #25A0B0

analogous

#B0255B #B03525 #B07A25

triadic

#B03525 #25B035 #3525B0

tetradic

#B03525 #5BB025 #25A0B0 #7A25B0

square

#B03525 #5BB025 #25A0B0 #7A25B0

split-complementary

#B03525 #25B07A #255BB0

monochromatic

#4B1710 #7D261A #B03525 #D64E3C #E17C6F

Accessibility & contrast

On white

6.21

#B03525 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B03525 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03525

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03525	#FFFFFF	#000000	##FFFFFF
##B03525	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)

#595022

Deuteranopia (green-blind)

#776B20

Tritanopia (blue-blind)

#C20632

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03525;
/* rgb */ color: rgb(176, 53, 37);
/* oklch */ color: oklch(51.1% 0.162 30.7);

Tailwind

colors: {
  custom: {
    50: '#d07461',
    500: '#b03525',
    950: '#000000',
  },
}

SCSS

$custom: #b03525;
$custom-light: #d07461;
$custom-dark: #000000;

JSON

{
  "hex": "#b03525",
  "rgb": {
    "r": 176,
    "g": 53,
    "b": 37
  },
  "hsl": {
    "h": 6.906,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.51078,
    "c": 0.16201,
    "h": 30.7
  },
  "luminance": 0.1191
}

Semantic roles & 50–950 ramp

primary

#B03525

secondary

#6ABCC7

accent

#D5E840

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B03525

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

Preview Lab → · Contrast checker → · Palette generator →