#28183B#28183B

#28183B is a very dark, moderate violet. Relative luminance 0.014; OKLCH L 24.9% C 0.066 H 303.0°. Best body text is #FFFFFF at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#28183B
RGB	rgb(40, 24, 59)
HSL	hsl(267, 42%, 16%)
HSV	hsv(267, 59%, 23%)
CMYK	cmyk(32.2%, 59.3%, 0%, 76.9%)
CIE-LAB	lab(12.09, 16.75, -19.71)
CIE-LCH	lch(12.09, 25.86, 310.35°)
OKLab	oklab(24.91% 0.036 -0.0554)
OKLCH	oklch(24.91% 0.066 303)
XYZ	xyz(1.9909, 1.4202, 4.3061)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28183B #2B3B18

analogous

#181A3B #28183B #3A183B

triadic

#28183B #3B2818 #183B28

tetradic

#28183B #3B181A #2B3B18 #183B3A

square

#28183B #3B181A #2B3B18 #183B3A

split-complementary

#28183B #3B3A18 #1A3B18

monochromatic

#0F0916 #0F0916 #28183B #452A67 #633B92

Accessibility & contrast

On white

16.36

#28183B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#28183B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28183B

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28183B	#FFFFFF	#000000	##FFFFFF
##28183B	1.00	16.36	1.28	16.36
#FFFFFF	16.36	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D1F3C

Deuteranopia (green-blind)

#11203A

Tritanopia (blue-blind)

#251E26

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #28183b;
/* rgb */ color: rgb(40, 24, 59);
/* oklch */ color: oklch(24.9% 0.066 303.0);

Tailwind

colors: {
  custom: {
    50: '#635571',
    500: '#28183b',
    950: '#000000',
  },
}

SCSS

$custom: #28183b;
$custom-light: #635571;
$custom-dark: #000000;

JSON

{
  "hex": "#28183b",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 59
  },
  "hsl": {
    "h": 267.429,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.24912,
    "c": 0.06611,
    "h": 303
  },
  "luminance": 0.0142
}

Semantic roles & 50–950 ramp

primary

#28183B

secondary

#5A713E

accent

#D25699

background

#F6F4F6

surface

#EBE8EC

border

#C6C4C7

text

#050307

muted

#7A787A

Preview Lab

Preview with #28183B

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

Preview Lab → · Contrast checker → · Palette generator →