#B02831#B02831

#B02831 is a mid, vivid red. Relative luminance 0.110; OKLCH L 50.0% C 0.172 H 22.9°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#B02831
RGB	rgb(176, 40, 49)
HSL	hsl(356, 63%, 42%)
HSV	hsv(356, 77%, 69%)
CMYK	cmyk(0%, 77.3%, 72.2%, 31%)
CIE-LAB	lab(39.53, 54.11, 29.20)
CIE-LCH	lch(39.53, 61.48, 28.36°)
OKLab	oklab(49.97% 0.1582 0.0668)
OKLCH	oklch(49.97% 0.172 22.9)
XYZ	xyz(19.2199, 10.9724, 4.0110)
Luminance	0.1097 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B02831 #28B0A7

analogous

#B02875 #B02831 #B06328

triadic

#B02831 #31B028 #2831B0

tetradic

#B02831 #75B028 #28B0A7 #6328B0

square

#B02831 #75B028 #28B0A7 #6328B0

split-complementary

#B02831 #28B063 #2875B0

monochromatic

#4C1115 #7E1D23 #B02831 #D4414B #DF737A

Accessibility & contrast

On white

6.58

#B02831 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B02831 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B02831

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B02831	#FFFFFF	#000000	##FFFFFF
##B02831	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514B30

Deuteranopia (green-blind)

#73682C

Tritanopia (blue-blind)

#C2002D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b02831;
/* rgb */ color: rgb(176, 40, 49);
/* oklch */ color: oklch(50.0% 0.172 22.9);

Tailwind

colors: {
  custom: {
    50: '#d06e69',
    500: '#b02831',
    950: '#000000',
  },
}

SCSS

$custom: #b02831;
$custom-light: #d06e69;
$custom-dark: #000000;

JSON

{
  "hex": "#b02831",
  "rgb": {
    "r": 176,
    "g": 40,
    "b": 49
  },
  "hsl": {
    "h": 356.029,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49973,
    "c": 0.17169,
    "h": 22.9
  },
  "luminance": 0.10969
}

Semantic roles & 50–950 ramp

primary

#B02831

secondary

#6DC6C1

accent

#E6DB42

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #B02831

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

Preview Lab → · Contrast checker → · Palette generator →