#180728#180728

#180728 is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 17.9% C 0.066 H 304.4°. Best body text is #FFFFFF at 19.09:1 contrast (WCAG AA passes).

Color values

HEX	#180728
RGB	rgb(24, 7, 40)
HSL	hsl(271, 70%, 9%)
HSV	hsv(271, 83%, 16%)
CMYK	cmyk(40%, 82.5%, 0%, 84.3%)
CIE-LAB	lab(4.51, 14.79, -17.92)
CIE-LCH	lch(4.51, 23.23, 309.52°)
OKLab	oklab(17.87% 0.0371 -0.0542)
OKLCH	oklch(17.87% 0.066 304.4)
XYZ	xyz(0.8356, 0.4994, 2.0594)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180728 #172807

analogous

#080728 #180728 #280728

triadic

#180728 #281807 #072818

tetradic

#180728 #280807 #172807 #072828

square

#180728 #280807 #172807 #072828

split-complementary

#180728 #282807 #072808

monochromatic

#10051A #10051A #180728 #37105C #571990

Accessibility & contrast

On white

19.09

#180728 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#180728 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180728

19.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180728	#FFFFFF	#000000	##FFFFFF
##180728	1.00	19.09	1.10	19.09
#FFFFFF	19.09	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F29

Deuteranopia (green-blind)

#011027

Tritanopia (blue-blind)

#150E16

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #180728;
/* rgb */ color: rgb(24, 7, 40);
/* oklch */ color: oklch(17.9% 0.066 304.4);

Tailwind

colors: {
  custom: {
    50: '#554962',
    500: '#180728',
    950: '#000000',
  },
}

SCSS

$custom: #180728;
$custom-light: #554962;
$custom-dark: #000000;

JSON

{
  "hex": "#180728",
  "rgb": {
    "r": 24,
    "g": 7,
    "b": 40
  },
  "hsl": {
    "h": 270.909,
    "s": 70.213,
    "l": 9.216
  },
  "oklch": {
    "l": 0.17867,
    "c": 0.06568,
    "h": 304.4
  },
  "luminance": 0.00499
}

Semantic roles & 50–950 ramp

primary

#180728

secondary

#446823

accent

#ED3B91

background

#F5F4F5

surface

#E9E7EA

border

#C5C3C6

text

#030105

muted

#787779

Preview Lab

Preview with #180728

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

Preview Lab → · Contrast checker → · Palette generator →