#180A3D#180A3D

#180A3D is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.6% C 0.091 H 288.2°. Best body text is #FFFFFF at 18.27:1 contrast (WCAG AA passes).

Color values

HEX	#180A3D
RGB	rgb(24, 10, 61)
HSL	hsl(256, 72%, 14%)
HSV	hsv(256, 84%, 24%)
CMYK	cmyk(60.7%, 83.6%, 0%, 76.1%)
CIE-LAB	lab(6.76, 22.31, -29.85)
CIE-LCH	lch(6.76, 37.27, 306.78°)
OKLab	oklab(20.56% 0.0284 -0.0862)
OKLCH	oklch(20.56% 0.091 288.2)
XYZ	xyz(1.3273, 0.7481, 4.4884)
Luminance	0.0075 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 4.66

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180A3D #2F3D0A

analogous

#0A163D #180A3D #320A3D

triadic

#180A3D #3D180A #0A3D18

tetradic

#180A3D #3D0A16 #2F3D0A #0A3D32

square

#180A3D #3D0A16 #2F3D0A #0A3D32

split-complementary

#180A3D #3D320A #163D0A

monochromatic

#0A041A #0A041A #180A3D #2D1372 #411BA6

Accessibility & contrast

On white

18.27

#180A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#180A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180A3D

18.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180A3D	#FFFFFF	#000000	##FFFFFF
##180A3D	1.00	18.27	1.15	18.27
#FFFFFF	18.27	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163E

Deuteranopia (green-blind)

#00143C

Tritanopia (blue-blind)

#0A1822

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #180a3d;
/* rgb */ color: rgb(24, 10, 61);
/* oklch */ color: oklch(20.6% 0.091 288.2);

Tailwind

colors: {
  custom: {
    50: '#5a4a73',
    500: '#180a3d',
    950: '#000000',
  },
}

SCSS

$custom: #180a3d;
$custom-light: #5a4a73;
$custom-dark: #000000;

JSON

{
  "hex": "#180a3d",
  "rgb": {
    "r": 24,
    "g": 10,
    "b": 61
  },
  "hsl": {
    "h": 256.471,
    "s": 71.831,
    "l": 13.922
  },
  "oklch": {
    "l": 0.20561,
    "c": 0.09072,
    "h": 288.2
  },
  "luminance": 0.00748
}

Semantic roles & 50–950 ramp

primary

#180A3D

secondary

#647A28

accent

#EF39BD

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #180A3D

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

Preview Lab → · Contrast checker → · Palette generator →