#180B3E#180B3E

#180B3E is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 20.8% C 0.091 H 287.4°. Best body text is #FFFFFF at 18.16:1 contrast (WCAG AA passes).

Color values

HEX	#180B3E
RGB	rgb(24, 11, 62)
HSL	hsl(255, 70%, 14%)
HSV	hsv(255, 82%, 24%)
CMYK	cmyk(61.3%, 82.3%, 0%, 75.7%)
CIE-LAB	lab(7.06, 22.17, -30.08)
CIE-LCH	lch(7.06, 37.37, 306.39°)
OKLab	oklab(20.83% 0.0271 -0.0867)
OKLCH	oklch(20.83% 0.091 287.4)
XYZ	xyz(1.3656, 0.7813, 4.6353)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 4.58

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B3E #313E0B

analogous

#0B183E #180B3E #320B3E

triadic

#180B3E #3E180B #0B3E18

tetradic

#180B3E #3E0B18 #313E0B #0B3E32

square

#180B3E #3E0B18 #313E0B #0B3E32

split-complementary

#180B3E #3E320B #183E0B

monochromatic

#0A051A #0A051A #180B3E #2C1472 #401DA6

Accessibility & contrast

On white

18.16

#180B3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#180B3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B3E

18.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B3E	#FFFFFF	#000000	##FFFFFF
##180B3E	1.00	18.16	1.16	18.16
#FFFFFF	18.16	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00173F

Deuteranopia (green-blind)

#00143D

Tritanopia (blue-blind)

#091923

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #180b3e;
/* rgb */ color: rgb(24, 11, 62);
/* oklch */ color: oklch(20.8% 0.091 287.4);

Tailwind

colors: {
  custom: {
    50: '#5a4b74',
    500: '#180b3e',
    950: '#000000',
  },
}

SCSS

$custom: #180b3e;
$custom-light: #5a4b74;
$custom-dark: #000000;

JSON

{
  "hex": "#180b3e",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 62
  },
  "hsl": {
    "h": 255.294,
    "s": 69.863,
    "l": 14.314
  },
  "oklch": {
    "l": 0.20828,
    "c": 0.09082,
    "h": 287.4
  },
  "luminance": 0.00781
}

Semantic roles & 50–950 ramp

primary

#180B3E

secondary

#667B2A

accent

#ED3BBF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #180B3E

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

Preview Lab → · Contrast checker → · Palette generator →