#28123B#28123B

#28123B is a very dark, moderate violet. Relative luminance 0.012; OKLCH L 23.8% C 0.077 H 306.1°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).

Color values

HEX	#28123B
RGB	rgb(40, 18, 59)
HSL	hsl(272, 53%, 15%)
HSV	hsv(272, 69%, 23%)
CMYK	cmyk(32.2%, 69.5%, 0%, 76.9%)
CIE-LAB	lab(10.55, 20.78, -22.16)
CIE-LCH	lch(10.55, 30.38, 313.15°)
OKLab	oklab(23.78% 0.0456 -0.0626)
OKLCH	oklch(23.78% 0.077 306.1)
XYZ	xyz(1.8806, 1.1995, 4.2693)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28123B #253B12

analogous

#13123B #28123B #3B123A

triadic

#28123B #3B2812 #123B28

tetradic

#28123B #3B1312 #253B12 #123A3B

square

#28123B #3B1312 #253B12 #123A3B

split-complementary

#28123B #3A3B12 #123B13

monochromatic

#100717 #100717 #28123B #48206A #682F99

Accessibility & contrast

On white

16.94

#28123B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#28123B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28123B

16.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28123B	#FFFFFF	#000000	##FFFFFF
##28123B	1.00	16.94	1.24	16.94
#FFFFFF	16.94	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021C3C

Deuteranopia (green-blind)

#0A1D3A

Tritanopia (blue-blind)

#251A24

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #28123b;
/* rgb */ color: rgb(40, 18, 59);
/* oklch */ color: oklch(23.8% 0.077 306.1);

Tailwind

colors: {
  custom: {
    50: '#645171',
    500: '#28123b',
    950: '#000000',
  },
}

SCSS

$custom: #28123b;
$custom-light: #645171;
$custom-dark: #000000;

JSON

{
  "hex": "#28123b",
  "rgb": {
    "r": 40,
    "g": 18,
    "b": 59
  },
  "hsl": {
    "h": 272.195,
    "s": 53.247,
    "l": 15.098
  },
  "oklch": {
    "l": 0.23781,
    "c": 0.07747,
    "h": 306.1
  },
  "luminance": 0.01199
}

Semantic roles & 50–950 ramp

primary

#28123B

secondary

#527435

accent

#DD4B8F

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#050207

muted

#7A787A

Preview Lab

Preview with #28123B

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

Preview Lab → · Contrast checker → · Palette generator →