#28103A#28103A

#28103A is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.4% C 0.080 H 307.7°. Best body text is #FFFFFF at 17.14:1 contrast (WCAG AA passes).

Color values

HEX	#28103A
RGB	rgb(40, 16, 58)
HSL	hsl(274, 57%, 15%)
HSV	hsv(274, 72%, 23%)
CMYK	cmyk(31%, 72.4%, 0%, 77.3%)
CIE-LAB	lab(10.01, 21.75, -22.32)
CIE-LCH	lch(10.01, 31.17, 314.26°)
OKLab	oklab(23.36% 0.0487 -0.063)
OKLCH	oklch(23.36% 0.08 307.7)
XYZ	xyz(1.8239, 1.1272, 4.1237)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28103A #223A10

analogous

#13103A #28103A #3A1037

triadic

#28103A #3A2810 #103A28

tetradic

#28103A #3A1310 #223A10 #10373A

square

#28103A #3A1310 #223A10 #10373A

split-complementary

#28103A #373A10 #103A13

monochromatic

#110718 #110718 #28103A #491D6A #6A2A9A

Accessibility & contrast

On white

17.14

#28103A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#28103A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28103A

17.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28103A	#FFFFFF	#000000	##FFFFFF
##28103A	1.00	17.14	1.23	17.14
#FFFFFF	17.14	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3B

Deuteranopia (green-blind)

#091C39

Tritanopia (blue-blind)

#251823

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #28103a;
/* rgb */ color: rgb(40, 16, 58);
/* oklch */ color: oklch(23.4% 0.080 307.7);

Tailwind

colors: {
  custom: {
    50: '#645070',
    500: '#28103a',
    950: '#000000',
  },
}

SCSS

$custom: #28103a;
$custom-light: #645070;
$custom-dark: #000000;

JSON

{
  "hex": "#28103a",
  "rgb": {
    "r": 40,
    "g": 16,
    "b": 58
  },
  "hsl": {
    "h": 274.286,
    "s": 56.757,
    "l": 14.51
  },
  "oklch": {
    "l": 0.23361,
    "c": 0.07966,
    "h": 307.7
  },
  "luminance": 0.01127
}

Semantic roles & 50–950 ramp

primary

#28103A

secondary

#4E7432

accent

#E04889

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#050207

muted

#7A787A

Preview Lab

Preview with #28103A

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

Preview Lab → · Contrast checker → · Palette generator →