#180A3A#180A3A

#180A3A is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.2% C 0.086 H 289.7°. Best body text is #FFFFFF at 18.37:1 contrast (WCAG AA passes).

Color values

HEX	#180A3A
RGB	rgb(24, 10, 58)
HSL	hsl(258, 71%, 13%)
HSV	hsv(258, 83%, 23%)
CMYK	cmyk(58.6%, 82.8%, 0%, 77.3%)
CIE-LAB	lab(6.47, 21.11, -28.15)
CIE-LCH	lch(6.47, 35.19, 306.87°)
OKLab	oklab(20.23% 0.0292 -0.0814)
OKLCH	oklch(20.23% 0.086 289.7)
XYZ	xyz(1.2487, 0.7167, 4.0747)
Luminance	0.0072 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180A3A #2C3A0A

analogous

#0A143A #180A3A #300A3A

triadic

#180A3A #3A180A #0A3A18

tetradic

#180A3A #3A0A14 #2C3A0A #0A3A30

square

#180A3A #3A0A14 #2C3A0A #0A3A30

split-complementary

#180A3A #3A300A #143A0A

monochromatic

#0B051A #0B051A #180A3A #2E136E #431CA2

Accessibility & contrast

On white

18.37

#180A3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#180A3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180A3A

18.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180A3A	#FFFFFF	#000000	##FFFFFF
##180A3A	1.00	18.37	1.14	18.37
#FFFFFF	18.37	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00153B

Deuteranopia (green-blind)

#001339

Tritanopia (blue-blind)

#0C1721

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #180a3a;
/* rgb */ color: rgb(24, 10, 58);
/* oklch */ color: oklch(20.2% 0.086 289.7);

Tailwind

colors: {
  custom: {
    50: '#594a71',
    500: '#180a3a',
    950: '#000000',
  },
}

SCSS

$custom: #180a3a;
$custom-light: #594a71;
$custom-dark: #000000;

JSON

{
  "hex": "#180a3a",
  "rgb": {
    "r": 24,
    "g": 10,
    "b": 58
  },
  "hsl": {
    "h": 257.5,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.20234,
    "c": 0.08644,
    "h": 289.7
  },
  "luminance": 0.00717
}

Semantic roles & 50–950 ramp

primary

#180A3A

secondary

#607728

accent

#ED3AB9

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040107

muted

#79777A

Preview Lab

Preview with #180A3A

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

Preview Lab → · Contrast checker → · Palette generator →