#103366#103366

#103366 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.098 H 258.3°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#103366
RGB	rgb(16, 51, 102)
HSL	hsl(216, 73%, 23%)
HSV	hsv(216, 84%, 40%)
CMYK	cmyk(84.3%, 50%, 0%, 60%)
CIE-LAB	lab(21.71, 8.33, -33.54)
CIE-LCH	lch(21.71, 34.56, 283.95°)
OKLab	oklab(32.77% -0.0199 -0.0963)
OKLCH	oklch(32.77% 0.098 258.3)
XYZ	xyz(3.7949, 3.4367, 13.0311)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103366 #664310

analogous

#105E66 #103366 #181066

triadic

#103366 #661033 #336610

tetradic

#103366 #66105E #664310 #106618

square

#103366 #66105E #664310 #106618

split-complementary

#103366 #661810 #5E6610

monochromatic

#040D1A #081931 #103366 #184D9B #2168D0

Accessibility & contrast

On white

12.45

#103366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#103366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103366

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103366	#FFFFFF	#000000	##FFFFFF
##103366	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173868

Deuteranopia (green-blind)

#003065

Tritanopia (blue-blind)

#003F47

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #103366;
/* rgb */ color: rgb(16, 51, 102);
/* oklch */ color: oklch(32.8% 0.098 258.3);

Tailwind

colors: {
  custom: {
    50: '#5e6a92',
    500: '#103366',
    950: '#000000',
  },
}

SCSS

$custom: #103366;
$custom-light: #5e6a92;
$custom-dark: #000000;

JSON

{
  "hex": "#103366",
  "rgb": {
    "r": 16,
    "g": 51,
    "b": 102
  },
  "hsl": {
    "h": 215.581,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.32766,
    "c": 0.09837,
    "h": 258.3
  },
  "luminance": 0.03437
}

Semantic roles & 50–950 ramp

primary

#103366

secondary

#9E7333

accent

#A538F0

background

#F5F6F9

surface

#EAEBF1

border

#C6C6CB

text

#05060D

muted

#797A7E

Preview Lab

Preview with #103366

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

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