#183474#183474

#183474 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.5% C 0.116 H 263.7°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#183474
RGB	rgb(24, 52, 116)
HSL	hsl(222, 66%, 27%)
HSV	hsv(222, 79%, 45%)
CMYK	cmyk(79.3%, 55.2%, 0%, 54.5%)
CIE-LAB	lab(23.37, 14.53, -39.86)
CIE-LCH	lch(23.37, 42.43, 290.03°)
OKLab	oklab(34.45% -0.0128 -0.1148)
OKLCH	oklch(34.45% 0.116 263.7)
XYZ	xyz(4.7559, 3.9106, 17.0238)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183474 #745818

analogous

#186274 #183474 #2A1874

triadic

#183474 #741834 #347418

tetradic

#183474 #741862 #745818 #18742A

square

#183474 #741862 #745818 #18742A

split-complementary

#183474 #742A18 #627418

monochromatic

#050B19 #0E1D41 #183474 #224BA7 #3263D5

Accessibility & contrast

On white

11.78

#183474 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#183474 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183474

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183474	#FFFFFF	#000000	##FFFFFF
##183474	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#063C76

Deuteranopia (green-blind)

#003473

Tritanopia (blue-blind)

#00444E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183474;
/* rgb */ color: rgb(24, 52, 116);
/* oklch */ color: oklch(34.5% 0.116 263.7);

Tailwind

colors: {
  custom: {
    50: '#646a9d',
    500: '#183474',
    950: '#000000',
  },
}

SCSS

$custom: #183474;
$custom-light: #646a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#183474",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 116
  },
  "hsl": {
    "h": 221.739,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34454,
    "c": 0.1155,
    "h": 263.7
  },
  "luminance": 0.03911
}

Semantic roles & 50–950 ramp

primary

#183474

secondary

#A9893F

accent

#B53FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183474

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

Preview Lab → · Contrast checker → · Palette generator →