#183768#183768

#183768 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.2% C 0.093 H 259.3°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#183768
RGB	rgb(24, 55, 104)
HSL	hsl(217, 63%, 25%)
HSV	hsv(217, 77%, 41%)
CMYK	cmyk(76.9%, 47.1%, 0%, 59.2%)
CIE-LAB	lab(23.42, 7.41, -32.07)
CIE-LCH	lch(23.42, 32.92, 283.01°)
OKLab	oklab(34.21% -0.0174 -0.0918)
OKLCH	oklch(34.21% 0.093 259.3)
XYZ	xyz(4.2407, 3.9256, 13.6282)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183768 #684918

analogous

#185F68 #183768 #211868

triadic

#183768 #681837 #376818

tetradic

#183768 #68185F #684918 #186821

square

#183768 #68185F #684918 #186821

split-complementary

#183768 #682118 #5F6818

monochromatic

#060D19 #0D1D36 #183768 #23519A #2F6CCB

Accessibility & contrast

On white

11.76

#183768 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#183768 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183768

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183768	#FFFFFF	#000000	##FFFFFF
##183768	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3C6A

Deuteranopia (green-blind)

#0F3467

Tritanopia (blue-blind)

#00424A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183768;
/* rgb */ color: rgb(24, 55, 104);
/* oklch */ color: oklch(34.2% 0.093 259.3);

Tailwind

colors: {
  custom: {
    50: '#616d93',
    500: '#183768',
    950: '#000000',
  },
}

SCSS

$custom: #183768;
$custom-light: #616d93;
$custom-dark: #000000;

JSON

{
  "hex": "#183768",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 104
  },
  "hsl": {
    "h": 216.75,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34212,
    "c": 0.09345,
    "h": 259.3
  },
  "luminance": 0.03926
}

Semantic roles & 50–950 ramp

primary

#183768

secondary

#9E793E

accent

#A642E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #183768

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

Preview Lab → · Contrast checker → · Palette generator →