#103C66#103C66

#103C66 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.087 H 251.1°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#103C66
RGB	rgb(16, 60, 102)
HSL	hsl(209, 73%, 23%)
HSV	hsv(209, 84%, 40%)
CMYK	cmyk(84.3%, 41.2%, 0%, 60%)
CIE-LAB	lab(24.64, 1.97, -28.85)
CIE-LCH	lch(24.64, 28.92, 273.90°)
OKLab	oklab(35.04% -0.0282 -0.0824)
OKLCH	oklch(35.04% 0.087 251.1)
XYZ	xyz(4.2269, 4.3007, 13.1751)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C66 #663A10

analogous

#106665 #103C66 #101166

triadic

#103C66 #66103C #3C6610

tetradic

#103C66 #651066 #663A10 #116610

square

#103C66 #651066 #663A10 #116610

split-complementary

#103C66 #661011 #666510

monochromatic

#04101A #081D31 #103C66 #185B9B #217AD0

Accessibility & contrast

On white

11.29

#103C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#103C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C66

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C66	#FFFFFF	#000000	##FFFFFF
##103C66	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283F68

Deuteranopia (green-blind)

#1A3765

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103c66;
/* rgb */ color: rgb(16, 60, 102);
/* oklch */ color: oklch(35.0% 0.087 251.1);

Tailwind

colors: {
  custom: {
    50: '#5e7192',
    500: '#103c66',
    950: '#000000',
  },
}

SCSS

$custom: #103c66;
$custom-light: #5e7192;
$custom-dark: #000000;

JSON

{
  "hex": "#103c66",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 102
  },
  "hsl": {
    "h": 209.302,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.35039,
    "c": 0.08708,
    "h": 251.1
  },
  "luminance": 0.04301
}

Semantic roles & 50–950 ramp

primary

#103C66

secondary

#9E6833

accent

#9238F0

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #103C66

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

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