#B15151#B15151

#B15151 is a mid, vivid red. Relative luminance 0.158; OKLCH L 55.6% C 0.126 H 22.0°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#B15151
RGB	rgb(177, 81, 81)
HSL	hsl(0, 38%, 51%)
HSV	hsv(0, 54%, 69%)
CMYK	cmyk(0%, 54.2%, 54.2%, 30.6%)
CIE-LAB	lab(46.75, 39.11, 19.02)
CIE-LCH	lch(46.75, 43.49, 25.93°)
OKLab	oklab(55.6% 0.1166 0.0471)
OKLCH	oklch(55.6% 0.126 22)
XYZ	xyz(22.5609, 15.8287, 9.6501)
Luminance	0.1583 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B15151 #51B1B1

analogous

#B15181 #B15151 #B18151

triadic

#B15151 #51B151 #5151B1

tetradic

#B15151 #81B151 #51B1B1 #8151B1

square

#B15151 #81B151 #51B1B1 #8151B1

split-complementary

#B15151 #51B181 #5181B1

monochromatic

#5E2A2A #883D3D #B15151 #C47B7B #D7A6A6

Accessibility & contrast

On white

5.04

#B15151 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#B15151 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B15151

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B15151	#FFFFFF	#000000	##FFFFFF
##B15151	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#676250

Deuteranopia (green-blind)

#7F764F

Tritanopia (blue-blind)

#C14252

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #b15151;
/* rgb */ color: rgb(177, 81, 81);
/* oklch */ color: oklch(55.6% 0.126 22.0);

Tailwind

colors: {
  custom: {
    50: '#cd8581',
    500: '#b15151',
    950: '#000000',
  },
}

SCSS

$custom: #b15151;
$custom-light: #cd8581;
$custom-dark: #000000;

JSON

{
  "hex": "#b15151",
  "rgb": {
    "r": 177,
    "g": 81,
    "b": 81
  },
  "hsl": {
    "h": 0,
    "s": 38.095,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55595,
    "c": 0.12579,
    "h": 22
  },
  "luminance": 0.15826
}

Semantic roles & 50–950 ramp

primary

#B15151

secondary

#9AC4C4

accent

#CECE5A

background

#FDF8F7

surface

#FAEFEE

border

#D3CAC9

text

#140B0A

muted

#837C7C

Preview Lab

Preview with #B15151

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

Preview Lab → · Contrast checker → · Palette generator →