#180B3C#180B3C

#180B3C is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 20.6% C 0.088 H 288.3°. Best body text is #FFFFFF at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#180B3C
RGB	rgb(24, 11, 60)
HSL	hsl(256, 69%, 14%)
HSV	hsv(256, 82%, 24%)
CMYK	cmyk(60%, 81.7%, 0%, 76.5%)
CIE-LAB	lab(6.86, 21.39, -28.96)
CIE-LCH	lch(6.86, 36.00, 306.44°)
OKLab	oklab(20.61% 0.0276 -0.0835)
OKLCH	oklch(20.61% 0.088 288.3)
XYZ	xyz(1.3117, 0.7597, 4.3516)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B3C #2F3C0B

analogous

#0B173C #180B3C #310B3C

triadic

#180B3C #3C180B #0B3C18

tetradic

#180B3C #3C0B17 #2F3C0B #0B3C31

square

#180B3C #3C0B17 #2F3C0B #0B3C31

split-complementary

#180B3C #3C310B #173C0B

monochromatic

#0A051A #0A051A #180B3C #2D1470 #411EA3

Accessibility & contrast

On white

18.23

#180B3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#180B3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B3C

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B3C	#FFFFFF	#000000	##FFFFFF
##180B3C	1.00	18.23	1.15	18.23
#FFFFFF	18.23	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163D

Deuteranopia (green-blind)

#00143B

Tritanopia (blue-blind)

#0A1822

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #180b3c;
/* rgb */ color: rgb(24, 11, 60);
/* oklch */ color: oklch(20.6% 0.088 288.3);

Tailwind

colors: {
  custom: {
    50: '#5a4b72',
    500: '#180b3c',
    950: '#000000',
  },
}

SCSS

$custom: #180b3c;
$custom-light: #5a4b72;
$custom-dark: #000000;

JSON

{
  "hex": "#180b3c",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 60
  },
  "hsl": {
    "h": 255.918,
    "s": 69.014,
    "l": 13.922
  },
  "oklch": {
    "l": 0.2061,
    "c": 0.08795,
    "h": 288.3
  },
  "luminance": 0.0076
}

Semantic roles & 50–950 ramp

primary

#180B3C

secondary

#64792A

accent

#EC3CBD

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #180B3C

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

Preview Lab → · Contrast checker → · Palette generator →