#180A3B#180A3B

#180A3B is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.3% C 0.088 H 289.2°. Best body text is #FFFFFF at 18.33:1 contrast (WCAG AA passes).

Color values

HEX	#180A3B
RGB	rgb(24, 10, 59)
HSL	hsl(257, 71%, 14%)
HSV	hsv(257, 83%, 23%)
CMYK	cmyk(59.3%, 83.1%, 0%, 76.9%)
CIE-LAB	lab(6.57, 21.51, -28.72)
CIE-LCH	lch(6.57, 35.88, 306.83°)
OKLab	oklab(20.34% 0.0289 -0.083)
OKLCH	oklch(20.34% 0.088 289.2)
XYZ	xyz(1.2744, 0.7270, 4.2100)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180A3B #2D3B0A

analogous

#0A143B #180A3B #300A3B

triadic

#180A3B #3B180A #0A3B18

tetradic

#180A3B #3B0A14 #2D3B0A #0A3B30

square

#180A3B #3B0A14 #2D3B0A #0A3B30

split-complementary

#180A3B #3B300A #143B0A

monochromatic

#0B041A #0B041A #180A3B #2D136F #431CA4

Accessibility & contrast

On white

18.33

#180A3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#180A3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180A3B

18.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180A3B	#FFFFFF	#000000	##FFFFFF
##180A3B	1.00	18.33	1.15	18.33
#FFFFFF	18.33	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163C

Deuteranopia (green-blind)

#00133A

Tritanopia (blue-blind)

#0B1721

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #180a3b;
/* rgb */ color: rgb(24, 10, 59);
/* oklch */ color: oklch(20.3% 0.088 289.2);

Tailwind

colors: {
  custom: {
    50: '#594a71',
    500: '#180a3b',
    950: '#000000',
  },
}

SCSS

$custom: #180a3b;
$custom-light: #594a71;
$custom-dark: #000000;

JSON

{
  "hex": "#180a3b",
  "rgb": {
    "r": 24,
    "g": 10,
    "b": 59
  },
  "hsl": {
    "h": 257.143,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.20342,
    "c": 0.08787,
    "h": 289.2
  },
  "luminance": 0.00727
}

Semantic roles & 50–950 ramp

primary

#180A3B

secondary

#627828

accent

#EE3ABA

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #180A3B

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

Preview Lab → · Contrast checker → · Palette generator →