#183374#183374

#183374 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.2% C 0.117 H 264.1°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#183374
RGB	rgb(24, 51, 116)
HSL	hsl(222, 66%, 27%)
HSV	hsv(222, 79%, 45%)
CMYK	cmyk(79.3%, 56%, 0%, 54.5%)
CIE-LAB	lab(23.08, 15.25, -40.34)
CIE-LCH	lch(23.08, 43.13, 290.71°)
OKLab	oklab(34.23% -0.0119 -0.1162)
OKLCH	oklch(34.23% 0.117 264.1)
XYZ	xyz(4.7118, 3.8223, 17.0091)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183374 #745918

analogous

#186174 #183374 #2B1874

triadic

#183374 #741833 #337418

tetradic

#183374 #741861 #745918 #18742B

square

#183374 #741861 #745918 #18742B

split-complementary

#183374 #742B18 #617418

monochromatic

#050B19 #0E1D41 #183374 #2249A7 #3262D5

Accessibility & contrast

On white

11.90

#183374 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#183374 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183374

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183374	#FFFFFF	#000000	##FFFFFF
##183374	1.00	11.90	1.76	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#023B76

Deuteranopia (green-blind)

#003373

Tritanopia (blue-blind)

#00434E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183374;
/* rgb */ color: rgb(24, 51, 116);
/* oklch */ color: oklch(34.2% 0.117 264.1);

Tailwind

colors: {
  custom: {
    50: '#646a9d',
    500: '#183374',
    950: '#000000',
  },
}

SCSS

$custom: #183374;
$custom-light: #646a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#183374",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 116
  },
  "hsl": {
    "h": 222.391,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34227,
    "c": 0.11685,
    "h": 264.1
  },
  "luminance": 0.03823
}

Semantic roles & 50–950 ramp

primary

#183374

secondary

#A98A3F

accent

#B73FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183374

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

Preview Lab → · Contrast checker → · Palette generator →