#18186A#18186A

#18186A is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.9% C 0.137 H 273.1°. Best body text is #FFFFFF at 15.24:1 contrast (WCAG AA passes).

Color values

HEX	#18186A
RGB	rgb(24, 24, 106)
HSL	hsl(240, 63%, 25%)
HSV	hsv(240, 77%, 42%)
CMYK	cmyk(77.4%, 77.4%, 0%, 58.4%)
CIE-LAB	lab(14.89, 30.05, -47.27)
CIE-LCH	lch(14.89, 56.01, 302.45°)
OKLab	oklab(27.9% 0.0073 -0.1367)
OKLCH	oklch(27.9% 0.137 273.1)
XYZ	xyz(3.3040, 1.8877, 13.8231)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18186A #6A6A18

analogous

#18416A #18186A #41186A

triadic

#18186A #6A1818 #186A18

tetradic

#18186A #6A1841 #6A6A18 #186A41

square

#18186A #6A1841 #6A6A18 #186A41

split-complementary

#18186A #6A4118 #416A18

monochromatic

#060619 #0D0D38 #18186A #23239C #2F2FCE

Accessibility & contrast

On white

15.24

#18186A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#18186A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18186A

15.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18186A	#FFFFFF	#000000	##FFFFFF
##18186A	1.00	15.24	1.38	15.24
#FFFFFF	15.24	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296C

Deuteranopia (green-blind)

#002169

Tritanopia (blue-blind)

#00303F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #18186a;
/* rgb */ color: rgb(24, 24, 106);
/* oklch */ color: oklch(27.9% 0.137 273.1);

Tailwind

colors: {
  custom: {
    50: '#645696',
    500: '#18186a',
    950: '#000000',
  },
}

SCSS

$custom: #18186a;
$custom-light: #645696;
$custom-dark: #000000;

JSON

{
  "hex": "#18186a",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 106
  },
  "hsl": {
    "h": 240,
    "s": 63.077,
    "l": 25.49
  },
  "oklch": {
    "l": 0.27901,
    "c": 0.13695,
    "h": 273.1
  },
  "luminance": 0.01888
}

Semantic roles & 50–950 ramp

primary

#18186A

secondary

#A0A03E

accent

#E642E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #18186A

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

Preview Lab → · Contrast checker → · Palette generator →