#180C3F#180C3F

#180C3F is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 21.1% C 0.091 H 286.5°. Best body text is #FFFFFF at 18.05:1 contrast (WCAG AA passes).

Color values

HEX	#180C3F
RGB	rgb(24, 12, 63)
HSL	hsl(254, 68%, 15%)
HSV	hsv(254, 81%, 25%)
CMYK	cmyk(61.9%, 81%, 0%, 75.3%)
CIE-LAB	lab(7.37, 21.98, -30.29)
CIE-LCH	lch(7.37, 37.42, 305.97°)
OKLab	oklab(21.1% 0.0259 -0.0872)
OKLCH	oklch(21.1% 0.091 286.5)
XYZ	xyz(1.4051, 0.8159, 4.7851)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 4.51

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180C3F #333F0C

analogous

#0C193F #180C3F #320C3F

triadic

#180C3F #3F180C #0C3F18

tetradic

#180C3F #3F0C19 #333F0C #0C3F32

square

#180C3F #3F0C19 #333F0C #0C3F32

split-complementary

#180C3F #3F320C #193F0C

monochromatic

#0A051A #0A051A #180C3F #2C1672 #3F20A6

Accessibility & contrast

On white

18.05

#180C3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#180C3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180C3F

18.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180C3F	#FFFFFF	#000000	##FFFFFF
##180C3F	1.00	18.05	1.16	18.05
#FFFFFF	18.05	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001841

Deuteranopia (green-blind)

#00153E

Tritanopia (blue-blind)

#081A24

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #180c3f;
/* rgb */ color: rgb(24, 12, 63);
/* oklch */ color: oklch(21.1% 0.091 286.5);

Tailwind

colors: {
  custom: {
    50: '#5a4c75',
    500: '#180c3f',
    950: '#000000',
  },
}

SCSS

$custom: #180c3f;
$custom-light: #5a4c75;
$custom-dark: #000000;

JSON

{
  "hex": "#180c3f",
  "rgb": {
    "r": 24,
    "g": 12,
    "b": 63
  },
  "hsl": {
    "h": 254.118,
    "s": 68,
    "l": 14.706
  },
  "oklch": {
    "l": 0.21099,
    "c": 0.09092,
    "h": 286.5
  },
  "luminance": 0.00816
}

Semantic roles & 50–950 ramp

primary

#180C3F

secondary

#687B2C

accent

#EB3DC2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #180C3F

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

Preview Lab → · Contrast checker → · Palette generator →