#103783#103783

#103783 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.1% C 0.135 H 261.9°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#103783
RGB	rgb(16, 55, 131)
HSL	hsl(220, 78%, 29%)
HSV	hsv(220, 88%, 51%)
CMYK	cmyk(87.8%, 58%, 0%, 48.6%)
CIE-LAB	lab(25.20, 17.84, -46.38)
CIE-LCH	lch(25.20, 49.70, 291.04°)
OKLab	oklab(36.14% -0.0191 -0.134)
OKLCH	oklch(36.14% 0.135 261.9)
XYZ	xyz(5.6751, 4.4805, 22.0340)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103783 #835C10

analogous

#107183 #103783 #231083

triadic

#103783 #831037 #378310

tetradic

#103783 #831071 #835C10 #108323

square

#103783 #831071 #835C10 #108323

split-complementary

#103783 #832310 #718310

monochromatic

#030B1B #09204C #103783 #174EBA #2968E5

Accessibility & contrast

On white

11.07

#103783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#103783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103783

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103783	#FFFFFF	#000000	##FFFFFF
##103783	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003782

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #103783;
/* rgb */ color: rgb(16, 55, 131);
/* oklch */ color: oklch(36.1% 0.135 261.9);

Tailwind

colors: {
  custom: {
    50: '#666da8',
    500: '#103783',
    950: '#000000',
  },
}

SCSS

$custom: #103783;
$custom-light: #666da8;
$custom-dark: #000000;

JSON

{
  "hex": "#103783",
  "rgb": {
    "r": 16,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 219.652,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36142,
    "c": 0.1354,
    "h": 261.9
  },
  "luminance": 0.04481
}

Semantic roles & 50–950 ramp

primary

#103783

secondary

#B98C36

accent

#B333F5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #103783

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

Preview Lab → · Contrast checker → · Palette generator →