#181768#181768

#181768 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.5% C 0.135 H 273.5°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#181768
RGB	rgb(24, 23, 104)
HSL	hsl(241, 64%, 25%)
HSV	hsv(241, 78%, 41%)
CMYK	cmyk(76.9%, 77.9%, 0%, 59.2%)
CIE-LAB	lab(14.43, 29.94, -46.70)
CIE-LCH	lch(14.43, 55.47, 302.67°)
OKLab	oklab(27.51% 0.0083 -0.1351)
OKLCH	oklch(27.51% 0.135 273.5)
XYZ	xyz(3.1809, 1.8061, 13.2750)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181768 #676817

analogous

#173E68 #181768 #411768

triadic

#181768 #681817 #176818

tetradic

#181768 #68173E #676817 #176841

square

#181768 #68173E #676817 #176841

split-complementary

#181768 #684117 #3E6817

monochromatic

#060619 #0C0C36 #181768 #24229A #2F2DCC

Accessibility & contrast

On white

15.43

#181768 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#181768 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181768

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181768	#FFFFFF	#000000	##FFFFFF
##181768	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286A

Deuteranopia (green-blind)

#002167

Tritanopia (blue-blind)

#002E3E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #181768;
/* rgb */ color: rgb(24, 23, 104);
/* oklch */ color: oklch(27.5% 0.135 273.5);

Tailwind

colors: {
  custom: {
    50: '#645594',
    500: '#181768',
    950: '#000000',
  },
}

SCSS

$custom: #181768;
$custom-light: #645594;
$custom-dark: #000000;

JSON

{
  "hex": "#181768",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 104
  },
  "hsl": {
    "h": 240.741,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27512,
    "c": 0.13534,
    "h": 273.5
  },
  "luminance": 0.01806
}

Semantic roles & 50–950 ramp

primary

#181768

secondary

#9D9E3D

accent

#E741E5

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181768

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

Preview Lab → · Contrast checker → · Palette generator →