#181356#181356

#181356 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.8% C 0.115 H 277.2°. Best body text is #FFFFFF at 16.58:1 contrast (WCAG AA passes).

Color values

HEX	#181356
RGB	rgb(24, 19, 86)
HSL	hsl(244, 64%, 21%)
HSV	hsv(244, 78%, 34%)
CMYK	cmyk(72.1%, 77.9%, 0%, 66.3%)
CIE-LAB	lab(11.49, 25.87, -39.52)
CIE-LCH	lch(11.49, 47.23, 303.21°)
OKLab	oklab(24.81% 0.0145 -0.1141)
OKLCH	oklch(24.81% 0.115 277.2)
XYZ	xyz(2.2887, 1.3316, 8.9387)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181356 #515613

analogous

#132F56 #181356 #391356

triadic

#181356 #561813 #135618

tetradic

#181356 #56132F #515613 #135639

square

#181356 #56132F #515613 #135639

split-complementary

#181356 #563913 #2F5613

monochromatic

#070619 #0A0824 #181356 #261E88 #3429BA

Accessibility & contrast

On white

16.58

#181356 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#181356 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181356

16.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181356	#FFFFFF	#000000	##FFFFFF
##181356	1.00	16.58	1.27	16.58
#FFFFFF	16.58	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002158

Deuteranopia (green-blind)

#001C55

Tritanopia (blue-blind)

#002633

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181356;
/* rgb */ color: rgb(24, 19, 86);
/* oklch */ color: oklch(24.8% 0.115 277.2);

Tailwind

colors: {
  custom: {
    50: '#5f5186',
    500: '#181356',
    950: '#000000',
  },
}

SCSS

$custom: #181356;
$custom-light: #5f5186;
$custom-dark: #000000;

JSON

{
  "hex": "#181356",
  "rgb": {
    "r": 24,
    "g": 19,
    "b": 86
  },
  "hsl": {
    "h": 244.478,
    "s": 63.81,
    "l": 20.588
  },
  "oklch": {
    "l": 0.24812,
    "c": 0.11505,
    "h": 277.2
  },
  "luminance": 0.01332
}

Semantic roles & 50–950 ramp

primary

#181356

secondary

#888E36

accent

#E741DA

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #181356

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

Preview Lab → · Contrast checker → · Palette generator →