#183686#183686

#183686 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.5% C 0.139 H 264.7°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#183686
RGB	rgb(24, 54, 134)
HSL	hsl(224, 70%, 31%)
HSV	hsv(224, 82%, 53%)
CMYK	cmyk(82.1%, 59.7%, 0%, 47.5%)
CIE-LAB	lab(25.42, 20.52, -47.89)
CIE-LCH	lch(25.42, 52.10, 293.19°)
OKLab	oklab(36.46% -0.0129 -0.1384)
OKLCH	oklch(36.46% 0.139 264.7)
XYZ	xyz(5.9974, 4.5530, 23.1124)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183686 #866818

analogous

#186D86 #183686 #311886

triadic

#183686 #861836 #368618

tetradic

#183686 #86186D #866818 #188631

square

#183686 #86186D #866818 #188631

split-complementary

#183686 #863118 #6D8618

monochromatic

#050C1E #0F2152 #183686 #214BBA #3C68DC

Accessibility & contrast

On white

10.99

#183686 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#183686 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183686

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183686	#FFFFFF	#000000	##FFFFFF
##183686	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004289

Deuteranopia (green-blind)

#003784

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183686;
/* rgb */ color: rgb(24, 54, 134);
/* oklch */ color: oklch(36.5% 0.139 264.7);

Tailwind

colors: {
  custom: {
    50: '#696caa',
    500: '#183686',
    950: '#000000',
  },
}

SCSS

$custom: #183686;
$custom-light: #696caa;
$custom-dark: #000000;

JSON

{
  "hex": "#183686",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 134
  },
  "hsl": {
    "h": 223.636,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3646,
    "c": 0.13896,
    "h": 264.7
  },
  "luminance": 0.04554
}

Semantic roles & 50–950 ramp

primary

#183686

secondary

#BA9940

accent

#BC3BEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183686

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

Preview Lab → · Contrast checker → · Palette generator →