#28043B#28043B

#28043B is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.8% C 0.100 H 310.3°. Best body text is #FFFFFF at 17.94:1 contrast (WCAG AA passes).

Color values

HEX	#28043B
RGB	rgb(40, 4, 59)
HSL	hsl(279, 87%, 12%)
HSV	hsv(279, 93%, 23%)
CMYK	cmyk(32.2%, 93.2%, 0%, 76.9%)
CIE-LAB	lab(7.71, 28.75, -26.76)
CIE-LCH	lch(7.71, 39.27, 317.06°)
OKLab	oklab(21.75% 0.0645 -0.076)
OKLCH	oklch(21.75% 0.1 310.3)
XYZ	xyz(1.7077, 0.8538, 4.2117)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28043B #173B04

analogous

#0D043B #28043B #3B0433

triadic

#28043B #3B2804 #043B28

tetradic

#28043B #3B0D04 #173B04 #04333B

square

#28043B #3B0D04 #173B04 #04333B

split-complementary

#28043B #333B04 #043B0D

monochromatic

#13021D #13021D #28043B #4F0874 #760CAE

Accessibility & contrast

On white

17.94

#28043B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#28043B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28043B

17.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28043B	#FFFFFF	#000000	##FFFFFF
##28043B	1.00	17.94	1.17	17.94
#FFFFFF	17.94	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00153C

Deuteranopia (green-blind)

#00173A

Tritanopia (blue-blind)

#251220

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #28043b;
/* rgb */ color: rgb(40, 4, 59);
/* oklch */ color: oklch(21.8% 0.100 310.3);

Tailwind

colors: {
  custom: {
    50: '#654971',
    500: '#28043b',
    950: '#000000',
  },
}

SCSS

$custom: #28043b;
$custom-light: #654971;
$custom-dark: #000000;

JSON

{
  "hex": "#28043b",
  "rgb": {
    "r": 40,
    "g": 4,
    "b": 59
  },
  "hsl": {
    "h": 279.273,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.21754,
    "c": 0.09965,
    "h": 310.3
  },
  "luminance": 0.00854
}

Semantic roles & 50–950 ramp

primary

#28043B

secondary

#3F7D1E

accent

#FD2A73

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#060108

muted

#7A777B

Preview Lab

Preview with #28043B

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

Preview Lab → · Contrast checker → · Palette generator →