#183674#183674

#183674 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.9% C 0.113 H 262.6°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#183674
RGB	rgb(24, 54, 116)
HSL	hsl(220, 66%, 27%)
HSV	hsv(220, 79%, 45%)
CMYK	cmyk(79.3%, 53.4%, 0%, 54.5%)
CIE-LAB	lab(23.98, 13.11, -38.88)
CIE-LCH	lch(23.98, 41.03, 288.63°)
OKLab	oklab(34.91% -0.0145 -0.1119)
OKLCH	oklch(34.91% 0.113 262.6)
XYZ	xyz(4.8471, 4.0929, 17.0542)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183674 #745618

analogous

#186474 #183674 #281874

triadic

#183674 #741836 #367418

tetradic

#183674 #741864 #745618 #187428

square

#183674 #741864 #745618 #187428

split-complementary

#183674 #742818 #647418

monochromatic

#050C19 #0E1E41 #183674 #224EA7 #3267D5

Accessibility & contrast

On white

11.55

#183674 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#183674 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183674

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183674	#FFFFFF	#000000	##FFFFFF
##183674	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3D76

Deuteranopia (green-blind)

#003573

Tritanopia (blue-blind)

#00454F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183674;
/* rgb */ color: rgb(24, 54, 116);
/* oklch */ color: oklch(34.9% 0.113 262.6);

Tailwind

colors: {
  custom: {
    50: '#646c9c',
    500: '#183674',
    950: '#000000',
  },
}

SCSS

$custom: #183674;
$custom-light: #646c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#183674",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 116
  },
  "hsl": {
    "h": 220.435,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34912,
    "c": 0.11281,
    "h": 262.6
  },
  "luminance": 0.04093
}

Semantic roles & 50–950 ramp

primary

#183674

secondary

#A9863F

accent

#B13FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183674

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

Preview Lab → · Contrast checker → · Palette generator →