#103D83#103D83

#103D83 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.5% C 0.128 H 259.5°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#103D83
RGB	rgb(16, 61, 131)
HSL	hsl(217, 78%, 29%)
HSV	hsv(217, 88%, 51%)
CMYK	cmyk(87.8%, 53.4%, 0%, 48.6%)
CIE-LAB	lab(26.98, 13.59, -43.50)
CIE-LCH	lch(26.98, 45.57, 287.35°)
OKLab	oklab(37.49% -0.0232 -0.1254)
OKLCH	oklch(37.49% 0.128 259.5)
XYZ	xyz(5.9777, 5.0856, 22.1349)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D83 #835610

analogous

#107783 #103D83 #1D1083

triadic

#103D83 #83103D #3D8310

tetradic

#103D83 #831077 #835610 #10831D

square

#103D83 #831077 #835610 #10831D

split-complementary

#103D83 #831D10 #778310

monochromatic

#030D1B #09244C #103D83 #1756BA #2972E5

Accessibility & contrast

On white

10.41

#103D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#103D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D83

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D83	#FFFFFF	#000000	##FFFFFF
##103D83	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4586

Deuteranopia (green-blind)

#003B82

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #103d83;
/* rgb */ color: rgb(16, 61, 131);
/* oklch */ color: oklch(37.5% 0.128 259.5);

Tailwind

colors: {
  custom: {
    50: '#6571a8',
    500: '#103d83',
    950: '#000000',
  },
}

SCSS

$custom: #103d83;
$custom-light: #6571a8;
$custom-dark: #000000;

JSON

{
  "hex": "#103d83",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 131
  },
  "hsl": {
    "h": 216.522,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37493,
    "c": 0.12756,
    "h": 259.5
  },
  "luminance": 0.05086
}

Semantic roles & 50–950 ramp

primary

#103D83

secondary

#B98636

accent

#A933F5

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #103D83

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

Preview Lab → · Contrast checker → · Palette generator →