#180B3B#180B3B

#180B3B is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.5% C 0.086 H 288.8°. Best body text is #FFFFFF at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#180B3B
RGB	rgb(24, 11, 59)
HSL	hsl(256, 69%, 14%)
HSV	hsv(256, 81%, 23%)
CMYK	cmyk(59.3%, 81.4%, 0%, 76.9%)
CIE-LAB	lab(6.77, 20.99, -28.40)
CIE-LCH	lch(6.77, 35.31, 306.48°)
OKLab	oklab(20.5% 0.0279 -0.0819)
OKLCH	oklch(20.5% 0.087 288.8)
XYZ	xyz(1.2855, 0.7492, 4.2137)
Luminance	0.0075 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B3B #2E3B0B

analogous

#0B163B #180B3B #300B3B

triadic

#180B3B #3B180B #0B3B18

tetradic

#180B3B #3B0B16 #2E3B0B #0B3B30

square

#180B3B #3B0B16 #2E3B0B #0B3B30

split-complementary

#180B3B #3B300B #163B0B

monochromatic

#0A051A #0A051A #180B3B #2D156F #421EA2

Accessibility & contrast

On white

18.26

#180B3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#180B3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B3B

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B3B	#FFFFFF	#000000	##FFFFFF
##180B3B	1.00	18.26	1.15	18.26
#FFFFFF	18.26	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163C

Deuteranopia (green-blind)

#00143A

Tritanopia (blue-blind)

#0B1822

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #180b3b;
/* rgb */ color: rgb(24, 11, 59);
/* oklch */ color: oklch(20.5% 0.086 288.8);

Tailwind

colors: {
  custom: {
    50: '#594b71',
    500: '#180b3b',
    950: '#000000',
  },
}

SCSS

$custom: #180b3b;
$custom-light: #594b71;
$custom-dark: #000000;

JSON

{
  "hex": "#180b3b",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 59
  },
  "hsl": {
    "h": 256.25,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.20503,
    "c": 0.0865,
    "h": 288.8
  },
  "luminance": 0.00749
}

Semantic roles & 50–950 ramp

primary

#180B3B

secondary

#63782A

accent

#EB3CBC

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #180B3B

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

Preview Lab → · Contrast checker → · Palette generator →