#181786#181786

#181786 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.1% C 0.174 H 270.6°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#181786
RGB	rgb(24, 23, 134)
HSL	hsl(241, 71%, 31%)
HSV	hsv(241, 83%, 53%)
CMYK	cmyk(82.1%, 82.8%, 0%, 47.5%)
CIE-LAB	lab(18.04, 40.42, -60.03)
CIE-LCH	lch(18.04, 72.37, 303.95°)
OKLab	oklab(31.1% 0.0018 -0.1738)
OKLCH	oklch(31.1% 0.174 270.6)
XYZ	xyz(4.9847, 2.5276, 22.7748)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181786 #858617

analogous

#174D86 #181786 #501786

triadic

#181786 #861817 #178618

tetradic

#181786 #86174D #858617 #178650

square

#181786 #86174D #858617 #178650

split-complementary

#181786 #865017 #4D8617

monochromatic

#05051E #0F0E52 #181786 #2120BA #3C3ADD

Accessibility & contrast

On white

13.95

#181786 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#181786 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181786

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181786	#FFFFFF	#000000	##FFFFFF
##181786	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003289

Deuteranopia (green-blind)

#002684

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #181786;
/* rgb */ color: rgb(24, 23, 134);
/* oklch */ color: oklch(31.1% 0.174 270.6);

Tailwind

colors: {
  custom: {
    50: '#6c57ab',
    500: '#181786',
    950: '#000000',
  },
}

SCSS

$custom: #181786;
$custom-light: #6c57ab;
$custom-dark: #000000;

JSON

{
  "hex": "#181786",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 134
  },
  "hsl": {
    "h": 240.541,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31104,
    "c": 0.17379,
    "h": 270.6
  },
  "luminance": 0.02528
}

Semantic roles & 50–950 ramp

primary

#181786

secondary

#B9BA3F

accent

#ED3AEC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #181786

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

Preview Lab → · Contrast checker → · Palette generator →