#B02739#B02739

#B02739 is a mid, vivid red. Relative luminance 0.110; OKLCH L 50.0% C 0.172 H 19.4°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#B02739
RGB	rgb(176, 39, 57)
HSL	hsl(352, 64%, 42%)
HSV	hsv(352, 78%, 69%)
CMYK	cmyk(0%, 77.8%, 67.6%, 31%)
CIE-LAB	lab(39.55, 54.82, 24.30)
CIE-LCH	lch(39.55, 59.96, 23.90°)
OKLab	oklab(50.02% 0.1622 0.0572)
OKLCH	oklch(50.02% 0.172 19.4)
XYZ	xyz(19.3707, 10.9795, 4.9694)
Luminance	0.1098 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B02739 #27B09E

analogous

#B0277D #B02739 #B05A27

triadic

#B02739 #39B027 #2739B0

tetradic

#B02739 #7DB027 #27B09E #5A27B0

square

#B02739 #7DB027 #27B09E #5A27B0

split-complementary

#B02739 #27B05A #277DB0

monochromatic

#4C1119 #7E1C29 #B02739 #D54053 #E07280

Accessibility & contrast

On white

6.57

#B02739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#B02739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B02739

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B02739	#FFFFFF	#000000	##FFFFFF
##B02739	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4B39

Deuteranopia (green-blind)

#726835

Tritanopia (blue-blind)

#C1002F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b02739;
/* rgb */ color: rgb(176, 39, 57);
/* oklch */ color: oklch(50.0% 0.172 19.4);

Tailwind

colors: {
  custom: {
    50: '#cf6e6f',
    500: '#b02739',
    950: '#000000',
  },
}

SCSS

$custom: #b02739;
$custom-light: #cf6e6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b02739",
  "rgb": {
    "r": 176,
    "g": 39,
    "b": 57
  },
  "hsl": {
    "h": 352.117,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50021,
    "c": 0.17201,
    "h": 19.4
  },
  "luminance": 0.10977
}

Semantic roles & 50–950 ramp

primary

#B02739

secondary

#6CC7BB

accent

#E7D141

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B02739

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

Preview Lab → · Contrast checker → · Palette generator →