#103683#103683

#103683 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.9% C 0.137 H 262.2°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#103683
RGB	rgb(16, 54, 131)
HSL	hsl(220, 78%, 29%)
HSV	hsv(220, 88%, 51%)
CMYK	cmyk(87.8%, 58.8%, 0%, 48.6%)
CIE-LAB	lab(24.91, 18.55, -46.86)
CIE-LCH	lch(24.91, 50.39, 291.60°)
OKLab	oklab(35.92% -0.0185 -0.1354)
OKLCH	oklch(35.92% 0.137 262.2)
XYZ	xyz(5.6281, 4.3865, 22.0184)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103683 #835D10

analogous

#107083 #103683 #241083

triadic

#103683 #831036 #368310

tetradic

#103683 #831070 #835D10 #108324

square

#103683 #831070 #835D10 #108324

split-complementary

#103683 #832410 #708310

monochromatic

#030B1B #09204C #103683 #174CBA #2967E5

Accessibility & contrast

On white

11.19

#103683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#103683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103683

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103683	#FFFFFF	#000000	##FFFFFF
##103683	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003682

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #103683;
/* rgb */ color: rgb(16, 54, 131);
/* oklch */ color: oklch(35.9% 0.137 262.2);

Tailwind

colors: {
  custom: {
    50: '#666ca8',
    500: '#103683',
    950: '#000000',
  },
}

SCSS

$custom: #103683;
$custom-light: #666ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#103683",
  "rgb": {
    "r": 16,
    "g": 54,
    "b": 131
  },
  "hsl": {
    "h": 220.174,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35923,
    "c": 0.1367,
    "h": 262.2
  },
  "luminance": 0.04387
}

Semantic roles & 50–950 ramp

primary

#103683

secondary

#B98E36

accent

#B533F5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #103683

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

Preview Lab → · Contrast checker → · Palette generator →