#181753#181753

#181753 is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.2% C 0.106 H 276.4°. Best body text is #FFFFFF at 16.32:1 contrast (WCAG AA passes).

Color values

HEX	#181753
RGB	rgb(24, 23, 83)
HSL	hsl(241, 57%, 21%)
HSV	hsv(241, 72%, 33%)
CMYK	cmyk(71.1%, 72.3%, 0%, 67.5%)
CIE-LAB	lab(12.16, 22.04, -36.38)
CIE-LCH	lch(12.16, 42.53, 301.21°)
OKLab	oklab(25.2% 0.0118 -0.1049)
OKLCH	oklch(25.2% 0.106 276.4)
XYZ	xyz(2.2439, 1.4313, 8.3400)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181753 #525317

analogous

#173453 #181753 #361753

triadic

#181753 #531817 #175318

tetradic

#181753 #531734 #525317 #175336

square

#181753 #531734 #525317 #175336

split-complementary

#181753 #533617 #345317

monochromatic

#070718 #0A0A23 #181753 #262483 #3432B3

Accessibility & contrast

On white

16.32

#181753 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#181753 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181753

16.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181753	#FFFFFF	#000000	##FFFFFF
##181753	1.00	16.32	1.29	16.32
#FFFFFF	16.32	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002255

Deuteranopia (green-blind)

#001D52

Tritanopia (blue-blind)

#002732

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #181753;
/* rgb */ color: rgb(24, 23, 83);
/* oklch */ color: oklch(25.2% 0.106 276.4);

Tailwind

colors: {
  custom: {
    50: '#5e5484',
    500: '#181753',
    950: '#000000',
  },
}

SCSS

$custom: #181753;
$custom-light: #5e5484;
$custom-dark: #000000;

JSON

{
  "hex": "#181753",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 83
  },
  "hsl": {
    "h": 241,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25196,
    "c": 0.10561,
    "h": 276.4
  },
  "luminance": 0.01432
}

Semantic roles & 50–950 ramp

primary

#181753

secondary

#898A3C

accent

#E048DD

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #181753

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

Preview Lab → · Contrast checker → · Palette generator →