#18166C#18166C

#18166C is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.8% C 0.142 H 273.2°. Best body text is #FFFFFF at 15.33:1 contrast (WCAG AA passes).

Color values

HEX	#18166C
RGB	rgb(24, 22, 108)
HSL	hsl(241, 66%, 25%)
HSV	hsv(241, 80%, 42%)
CMYK	cmyk(77.8%, 79.6%, 0%, 57.6%)
CIE-LAB	lab(14.68, 32.00, -48.91)
CIE-LCH	lch(14.68, 58.45, 303.20°)
OKLab	oklab(27.82% 0.0079 -0.1415)
OKLCH	oklch(27.82% 0.142 273.2)
XYZ	xyz(3.3695, 1.8504, 14.3640)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18166C #6A6C16

analogous

#163F6C #18166C #43166C

triadic

#18166C #6C1816 #166C18

tetradic

#18166C #6C163F #6A6C16 #166C43

square

#18166C #6C163F #6A6C16 #166C43

split-complementary

#18166C #6C4316 #3F6C16

monochromatic

#060519 #0D0C39 #18166C #23209F #2F2BD2

Accessibility & contrast

On white

15.33

#18166C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#18166C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18166C

15.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18166C	#FFFFFF	#000000	##FFFFFF
##18166C	1.00	15.33	1.37	15.33
#FFFFFF	15.33	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296E

Deuteranopia (green-blind)

#00216A

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #18166c;
/* rgb */ color: rgb(24, 22, 108);
/* oklch */ color: oklch(27.8% 0.142 273.2);

Tailwind

colors: {
  custom: {
    50: '#655597',
    500: '#18166c',
    950: '#000000',
  },
}

SCSS

$custom: #18166c;
$custom-light: #655597;
$custom-dark: #000000;

JSON

{
  "hex": "#18166c",
  "rgb": {
    "r": 24,
    "g": 22,
    "b": 108
  },
  "hsl": {
    "h": 241.395,
    "s": 66.154,
    "l": 25.49
  },
  "oklch": {
    "l": 0.27824,
    "c": 0.14175,
    "h": 273.2
  },
  "luminance": 0.01851
}

Semantic roles & 50–950 ramp

primary

#18166C

secondary

#A0A23C

accent

#E93FE5

background

#F6F5F9

surface

#EBE8F2

border

#C6C4CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #18166C

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

Preview Lab → · Contrast checker → · Palette generator →