#183585#183585

#183585 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.139 H 264.9°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#183585
RGB	rgb(24, 53, 133)
HSL	hsl(224, 69%, 31%)
HSV	hsv(224, 82%, 52%)
CMYK	cmyk(82%, 60.2%, 0%, 47.8%)
CIE-LAB	lab(25.05, 20.81, -47.86)
CIE-LCH	lch(25.05, 52.19, 293.50°)
OKLab	oklab(36.16% -0.0123 -0.1383)
OKLCH	oklch(36.16% 0.139 264.9)
XYZ	xyz(5.8819, 4.4332, 22.7314)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183585 #856818

analogous

#186B85 #183585 #311885

triadic

#183585 #851835 #358518

tetradic

#183585 #85186B #856818 #188531

square

#183585 #85186B #856818 #188531

split-complementary

#183585 #853118 #6B8518

monochromatic

#050C1D #0F2051 #183585 #214AB9 #3C66DC

Accessibility & contrast

On white

11.13

#183585 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#183585 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183585

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183585	#FFFFFF	#000000	##FFFFFF
##183585	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004188

Deuteranopia (green-blind)

#003783

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183585;
/* rgb */ color: rgb(24, 53, 133);
/* oklch */ color: oklch(36.2% 0.139 264.9);

Tailwind

colors: {
  custom: {
    50: '#696ba9',
    500: '#183585',
    950: '#000000',
  },
}

SCSS

$custom: #183585;
$custom-light: #696ba9;
$custom-dark: #000000;

JSON

{
  "hex": "#183585",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 133
  },
  "hsl": {
    "h": 224.037,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36159,
    "c": 0.13884,
    "h": 264.9
  },
  "luminance": 0.04434
}

Semantic roles & 50–950 ramp

primary

#183585

secondary

#B99940

accent

#BD3CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183585

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

Preview Lab → · Contrast checker → · Palette generator →