#181357#181357

#181357 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.9% C 0.116 H 277.0°. Best body text is #FFFFFF at 16.54:1 contrast (WCAG AA passes).

Color values

HEX	#181357
RGB	rgb(24, 19, 87)
HSL	hsl(244, 64%, 21%)
HSV	hsv(244, 78%, 34%)
CMYK	cmyk(72.4%, 78.2%, 0%, 65.9%)
CIE-LAB	lab(11.61, 26.24, -40.01)
CIE-LCH	lch(11.61, 47.85, 303.26°)
OKLab	oklab(24.92% 0.0143 -0.1156)
OKLCH	oklch(24.92% 0.116 277)
XYZ	xyz(2.3293, 1.3479, 9.1524)
Luminance	0.0135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181357 #525713

analogous

#133057 #181357 #3A1357

triadic

#181357 #571813 #135718

tetradic

#181357 #571330 #525713 #13573A

square

#181357 #571330 #525713 #13573A

split-complementary

#181357 #573A13 #305713

monochromatic

#070519 #0A0825 #181357 #261E89 #3429BB

Accessibility & contrast

On white

16.54

#181357 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#181357 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181357

16.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181357	#FFFFFF	#000000	##FFFFFF
##181357	1.00	16.54	1.27	16.54
#FFFFFF	16.54	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002259

Deuteranopia (green-blind)

#001C56

Tritanopia (blue-blind)

#002633

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #181357;
/* rgb */ color: rgb(24, 19, 87);
/* oklch */ color: oklch(24.9% 0.116 277.0);

Tailwind

colors: {
  custom: {
    50: '#5f5187',
    500: '#181357',
    950: '#000000',
  },
}

SCSS

$custom: #181357;
$custom-light: #5f5187;
$custom-dark: #000000;

JSON

{
  "hex": "#181357",
  "rgb": {
    "r": 24,
    "g": 19,
    "b": 87
  },
  "hsl": {
    "h": 244.412,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.24924,
    "c": 0.11646,
    "h": 277
  },
  "luminance": 0.01348
}

Semantic roles & 50–950 ramp

primary

#181357

secondary

#898F36

accent

#E741DB

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #181357

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

Preview Lab → · Contrast checker → · Palette generator →