#B42540#B42540

#B42540 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.7% C 0.177 H 16.5°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#B42540
RGB	rgb(180, 37, 64)
HSL	hsl(349, 66%, 43%)
HSV	hsv(349, 79%, 71%)
CMYK	cmyk(0%, 79.4%, 64.4%, 29.4%)
CIE-LAB	lab(40.25, 56.98, 20.97)
CIE-LCH	lch(40.25, 60.72, 20.21°)
OKLab	oklab(50.72% 0.1701 0.0504)
OKLCH	oklch(50.72% 0.177 16.5)
XYZ	xyz(20.4116, 11.3997, 5.9751)
Luminance	0.1140 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42540 #25B499

analogous

#B42588 #B42540 #B45125

triadic

#B42540 #40B425 #2540B4

tetradic

#B42540 #88B425 #25B499 #5125B4

square

#B42540 #88B425 #25B499 #5125B4

split-complementary

#B42540 #25B451 #2588B4

monochromatic

#4E101C #811B2E #B42540 #D73F5C #E27187

Accessibility & contrast

On white

6.40

#B42540 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#B42540 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42540

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42540	#FFFFFF	#000000	##FFFFFF
##B42540	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4C40

Deuteranopia (green-blind)

#736A3C

Tritanopia (blue-blind)

#C60031

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b42540;
/* rgb */ color: rgb(180, 37, 64);
/* oklch */ color: oklch(50.7% 0.177 16.5);

Tailwind

colors: {
  custom: {
    50: '#d26e74',
    500: '#b42540',
    950: '#000000',
  },
}

SCSS

$custom: #b42540;
$custom-light: #d26e74;
$custom-dark: #000000;

JSON

{
  "hex": "#b42540",
  "rgb": {
    "r": 180,
    "g": 37,
    "b": 64
  },
  "hsl": {
    "h": 348.671,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.5072,
    "c": 0.17739,
    "h": 16.5
  },
  "luminance": 0.11397
}

Semantic roles & 50–950 ramp

primary

#B42540

secondary

#6CC9B7

accent

#E9C93F

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150808

muted

#837B7B

Preview Lab

Preview with #B42540

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

Preview Lab → · Contrast checker → · Palette generator →