#183584#183584

#183584 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.1% C 0.137 H 264.9°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#183584
RGB	rgb(24, 53, 132)
HSL	hsl(224, 69%, 31%)
HSV	hsv(224, 82%, 52%)
CMYK	cmyk(81.8%, 59.8%, 0%, 48.2%)
CIE-LAB	lab(24.97, 20.40, -47.37)
CIE-LCH	lch(24.97, 51.58, 293.30°)
OKLab	oklab(36.07% -0.0123 -0.1369)
OKLCH	oklch(36.07% 0.137 264.9)
XYZ	xyz(5.8132, 4.4057, 22.3693)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183584 #846718

analogous

#186B84 #183584 #311884

triadic

#183584 #841835 #358418

tetradic

#183584 #84186B #846718 #188431

square

#183584 #84186B #846718 #188431

split-complementary

#183584 #843118 #6B8418

monochromatic

#050B1C #0F2050 #183584 #214AB8 #3B66DB

Accessibility & contrast

On white

11.16

#183584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#183584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183584

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183584	#FFFFFF	#000000	##FFFFFF
##183584	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004087

Deuteranopia (green-blind)

#003682

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183584;
/* rgb */ color: rgb(24, 53, 132);
/* oklch */ color: oklch(36.1% 0.137 264.9);

Tailwind

colors: {
  custom: {
    50: '#686ba8',
    500: '#183584',
    950: '#000000',
  },
}

SCSS

$custom: #183584;
$custom-light: #686ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#183584",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 132
  },
  "hsl": {
    "h": 223.889,
    "s": 69.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36068,
    "c": 0.13742,
    "h": 264.9
  },
  "luminance": 0.04406
}

Semantic roles & 50–950 ramp

primary

#183584

secondary

#B89840

accent

#BD3CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183584

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

Preview Lab → · Contrast checker → · Palette generator →