#831730#831730

#831730 is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.2% C 0.142 H 14.1°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#831730
RGB	rgb(131, 23, 48)
HSL	hsl(346, 70%, 30%)
HSV	hsv(346, 82%, 51%)
CMYK	cmyk(0%, 82.4%, 63.4%, 48.6%)
CIE-LAB	lab(28.52, 45.72, 14.09)
CIE-LCH	lch(28.52, 47.84, 17.13°)
OKLab	oklab(40.18% 0.1374 0.0344)
OKLCH	oklch(40.18% 0.142 14.1)
XYZ	xyz(10.2010, 5.6530, 3.3497)
Luminance	0.0565 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831730 #17836A

analogous

#831766 #831730 #833417

triadic

#831730 #308317 #173083

tetradic

#831730 #668317 #17836A #341783

square

#831730 #668317 #17836A #341783

split-complementary

#831730 #178334 #176683

monochromatic

#1B050A #4F0E1D #831730 #B72043 #DC385E

Accessibility & contrast

On white

9.86

#831730 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#831730 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831730

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831730	#FFFFFF	#000000	##FFFFFF
##831730	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363530

Deuteranopia (green-blind)

#524B2D

Tritanopia (blue-blind)

#900022

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #831730;
/* rgb */ color: rgb(131, 23, 48);
/* oklch */ color: oklch(40.2% 0.142 14.1);

Tailwind

colors: {
  custom: {
    50: '#ae6068',
    500: '#831730',
    950: '#000000',
  },
}

SCSS

$custom: #831730;
$custom-light: #ae6068;
$custom-dark: #000000;

JSON

{
  "hex": "#831730",
  "rgb": {
    "r": 131,
    "g": 23,
    "b": 48
  },
  "hsl": {
    "h": 346.111,
    "s": 70.13,
    "l": 30.196
  },
  "oklch": {
    "l": 0.40178,
    "c": 0.14163,
    "h": 14.1
  },
  "luminance": 0.05651
}

Semantic roles & 50–950 ramp

primary

#831730

secondary

#3FB79B

accent

#EDC43B

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#110506

muted

#807A7A

Preview Lab

Preview with #831730

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

Preview Lab → · Contrast checker → · Palette generator →