#180B30#180B30

#180B30 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.4% C 0.070 H 295.2°. Best body text is #FFFFFF at 18.59:1 contrast (WCAG AA passes).

Color values

HEX	#180B30
RGB	rgb(24, 11, 48)
HSL	hsl(261, 63%, 12%)
HSV	hsv(261, 77%, 19%)
CMYK	cmyk(50%, 77.1%, 0%, 81.2%)
CIE-LAB	lab(5.84, 16.48, -21.83)
CIE-LCH	lch(5.84, 27.36, 307.05°)
OKLab	oklab(19.39% 0.0299 -0.0634)
OKLCH	oklch(19.39% 0.07 295.2)
XYZ	xyz(1.0297, 0.6469, 2.8663)
Luminance	0.0065 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight

#03012D

ΔE00 5.32

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B30 #23300B

analogous

#0B1130 #180B30 #2B0B30

triadic

#180B30 #30180B #0B3018

tetradic

#180B30 #300B11 #23300B #0B302B

square

#180B30 #300B11 #23300B #0B302B

split-complementary

#180B30 #302B0B #11300B

monochromatic

#0C0619 #0C0619 #180B30 #311662 #4A2294

Accessibility & contrast

On white

18.59

#180B30 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#180B30 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B30

18.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B30	#FFFFFF	#000000	##FFFFFF
##180B30	1.00	18.59	1.13	18.59
#FFFFFF	18.59	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001331

Deuteranopia (green-blind)

#00122F

Tritanopia (blue-blind)

#12141C

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #180b30;
/* rgb */ color: rgb(24, 11, 48);
/* oklch */ color: oklch(19.4% 0.070 295.2);

Tailwind

colors: {
  custom: {
    50: '#574b68',
    500: '#180b30',
    950: '#000000',
  },
}

SCSS

$custom: #180b30;
$custom-light: #574b68;
$custom-dark: #000000;

JSON

{
  "hex": "#180b30",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 48
  },
  "hsl": {
    "h": 261.081,
    "s": 62.712,
    "l": 11.569
  },
  "oklch": {
    "l": 0.19387,
    "c": 0.07011,
    "h": 295.2
  },
  "luminance": 0.00647
}

Semantic roles & 50–950 ramp

primary

#180B30

secondary

#556D2A

accent

#E642AC

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#030106

muted

#78777A

Preview Lab

Preview with #180B30

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

Preview Lab → · Contrast checker → · Palette generator →