#183774#183774

#183774 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.111 H 262.1°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#183774
RGB	rgb(24, 55, 116)
HSL	hsl(220, 66%, 27%)
HSV	hsv(220, 79%, 45%)
CMYK	cmyk(79.3%, 52.6%, 0%, 54.5%)
CIE-LAB	lab(24.28, 12.39, -38.39)
CIE-LCH	lch(24.28, 40.34, 287.89°)
OKLab	oklab(35.14% -0.0153 -0.1104)
OKLCH	oklch(35.14% 0.111 262.1)
XYZ	xyz(4.8941, 4.1870, 17.0698)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183774 #745518

analogous

#186574 #183774 #271874

triadic

#183774 #741837 #377418

tetradic

#183774 #741865 #745518 #187427

square

#183774 #741865 #745518 #187427

split-complementary

#183774 #742718 #657418

monochromatic

#050C19 #0E1F41 #183774 #224FA7 #3269D5

Accessibility & contrast

On white

11.43

#183774 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#183774 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183774

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183774	#FFFFFF	#000000	##FFFFFF
##183774	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113E76

Deuteranopia (green-blind)

#003673

Tritanopia (blue-blind)

#004650

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183774;
/* rgb */ color: rgb(24, 55, 116);
/* oklch */ color: oklch(35.1% 0.111 262.1);

Tailwind

colors: {
  custom: {
    50: '#646d9c',
    500: '#183774',
    950: '#000000',
  },
}

SCSS

$custom: #183774;
$custom-light: #646d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#183774",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 116
  },
  "hsl": {
    "h": 219.783,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35144,
    "c": 0.11148,
    "h": 262.1
  },
  "luminance": 0.04188
}

Semantic roles & 50–950 ramp

primary

#183774

secondary

#A9853F

accent

#B03FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #183774

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

Preview Lab → · Contrast checker → · Palette generator →