#181353#181353

#181353 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.5% C 0.111 H 277.8°. Best body text is #FFFFFF at 16.71:1 contrast (WCAG AA passes).

Color values

HEX	#181353
RGB	rgb(24, 19, 83)
HSL	hsl(245, 63%, 20%)
HSV	hsv(245, 77%, 33%)
CMYK	cmyk(71.1%, 77.1%, 0%, 67.5%)
CIE-LAB	lab(11.17, 24.76, -38.02)
CIE-LCH	lch(11.17, 45.37, 303.08°)
OKLab	oklab(24.48% 0.0151 -0.1097)
OKLCH	oklch(24.48% 0.111 277.8)
XYZ	xyz(2.1704, 1.2843, 8.3155)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181353 #4E5313

analogous

#132E53 #181353 #381353

triadic

#181353 #531813 #135318

tetradic

#181353 #53132E #4E5313 #135338

square

#181353 #53132E #4E5313 #135338

split-complementary

#181353 #533813 #2E5313

monochromatic

#070619 #0A0821 #181353 #261E85 #352AB7

Accessibility & contrast

On white

16.71

#181353 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#181353 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181353

16.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181353	#FFFFFF	#000000	##FFFFFF
##181353	1.00	16.71	1.26	16.71
#FFFFFF	16.71	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002055

Deuteranopia (green-blind)

#001B52

Tritanopia (blue-blind)

#002531

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181353;
/* rgb */ color: rgb(24, 19, 83);
/* oklch */ color: oklch(24.5% 0.111 277.8);

Tailwind

colors: {
  custom: {
    50: '#5e5184',
    500: '#181353',
    950: '#000000',
  },
}

SCSS

$custom: #181353;
$custom-light: #5e5184;
$custom-dark: #000000;

JSON

{
  "hex": "#181353",
  "rgb": {
    "r": 24,
    "g": 19,
    "b": 83
  },
  "hsl": {
    "h": 244.688,
    "s": 62.745,
    "l": 20
  },
  "oklch": {
    "l": 0.24476,
    "c": 0.11079,
    "h": 277.8
  },
  "luminance": 0.01284
}

Semantic roles & 50–950 ramp

primary

#181353

secondary

#858B36

accent

#E642D9

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #181353

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

Preview Lab → · Contrast checker → · Palette generator →