#180B33#180B33

#180B33 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 19.7% C 0.075 H 293.2°. Best body text is #FFFFFF at 18.51:1 contrast (WCAG AA passes).

Color values

HEX	#180B33
RGB	rgb(24, 11, 51)
HSL	hsl(260, 65%, 12%)
HSV	hsv(260, 78%, 20%)
CMYK	cmyk(52.9%, 78.4%, 0%, 80%)
CIE-LAB	lab(6.07, 17.73, -23.68)
CIE-LCH	lch(6.07, 29.59, 306.82°)
OKLab	oklab(19.68% 0.0295 -0.0686)
OKLCH	oklch(19.68% 0.075 293.2)
XYZ	xyz(1.0937, 0.6725, 3.2035)
Luminance	0.0067 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight

#03012D

ΔE00 5.22

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B33 #26330B

analogous

#0B1233 #180B33 #2C0B33

triadic

#180B33 #33180B #0B3318

tetradic

#180B33 #330B12 #26330B #0B332C

square

#180B33 #330B12 #26330B #0B332C

split-complementary

#180B33 #332C0B #12330B

monochromatic

#0C0519 #0C0519 #180B33 #301665 #472198

Accessibility & contrast

On white

18.51

#180B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#180B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B33

18.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B33	#FFFFFF	#000000	##FFFFFF
##180B33	1.00	18.51	1.13	18.51
#FFFFFF	18.51	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001434

Deuteranopia (green-blind)

#001332

Tritanopia (blue-blind)

#10151D

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #180b33;
/* rgb */ color: rgb(24, 11, 51);
/* oklch */ color: oklch(19.7% 0.075 293.2);

Tailwind

colors: {
  custom: {
    50: '#574b6b',
    500: '#180b33',
    950: '#000000',
  },
}

SCSS

$custom: #180b33;
$custom-light: #574b6b;
$custom-dark: #000000;

JSON

{
  "hex": "#180b33",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 51
  },
  "hsl": {
    "h": 259.5,
    "s": 64.516,
    "l": 12.157
  },
  "oklch": {
    "l": 0.19679,
    "c": 0.07466,
    "h": 293.2
  },
  "luminance": 0.00673
}

Semantic roles & 50–950 ramp

primary

#180B33

secondary

#59702A

accent

#E840B1

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#030106

muted

#78777A

Preview Lab

Preview with #180B33

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

Preview Lab → · Contrast checker → · Palette generator →