#103983#103983

#103983 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.133 H 261.1°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#103983
RGB	rgb(16, 57, 131)
HSL	hsl(219, 78%, 29%)
HSV	hsv(219, 88%, 51%)
CMYK	cmyk(87.8%, 56.5%, 0%, 48.6%)
CIE-LAB	lab(25.79, 16.42, -45.43)
CIE-LCH	lch(25.79, 48.31, 289.87°)
OKLab	oklab(36.59% -0.0204 -0.1312)
OKLCH	oklch(36.59% 0.133 261.1)
XYZ	xyz(5.7721, 4.6744, 22.0664)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103983 #835A10

analogous

#107383 #103983 #211083

triadic

#103983 #831039 #398310

tetradic

#103983 #831073 #835A10 #108321

square

#103983 #831073 #835A10 #108321

split-complementary

#103983 #832110 #738310

monochromatic

#030C1B #09214C #103983 #1751BA #296CE5

Accessibility & contrast

On white

10.85

#103983 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#103983 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103983

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103983	#FFFFFF	#000000	##FFFFFF
##103983	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004286

Deuteranopia (green-blind)

#003882

Tritanopia (blue-blind)

#004B58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #103983;
/* rgb */ color: rgb(16, 57, 131);
/* oklch */ color: oklch(36.6% 0.133 261.1);

Tailwind

colors: {
  custom: {
    50: '#666ea8',
    500: '#103983',
    950: '#000000',
  },
}

SCSS

$custom: #103983;
$custom-light: #666ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#103983",
  "rgb": {
    "r": 16,
    "g": 57,
    "b": 131
  },
  "hsl": {
    "h": 218.609,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36586,
    "c": 0.13278,
    "h": 261.1
  },
  "luminance": 0.04675
}

Semantic roles & 50–950 ramp

primary

#103983

secondary

#B98A36

accent

#B033F5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #103983

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

Preview Lab → · Contrast checker → · Palette generator →