#103E66#103E66

#103E66 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.085 H 249.1°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#103E66
RGB	rgb(16, 62, 102)
HSL	hsl(208, 73%, 23%)
HSV	hsv(208, 84%, 40%)
CMYK	cmyk(84.3%, 39.2%, 0%, 60%)
CIE-LAB	lab(25.30, 0.59, -27.80)
CIE-LCH	lch(25.30, 27.81, 271.22°)
OKLab	oklab(35.56% -0.0302 -0.0792)
OKLCH	oklch(35.56% 0.085 249.1)
XYZ	xyz(4.3337, 4.5142, 13.2107)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103E66 #663810

analogous

#106663 #103E66 #101366

triadic

#103E66 #66103E #3E6610

tetradic

#103E66 #631066 #663810 #136610

square

#103E66 #631066 #663810 #136610

split-complementary

#103E66 #661013 #666310

monochromatic

#04101A #081E31 #103E66 #185E9B #217ED0

Accessibility & contrast

On white

11.04

#103E66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#103E66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103E66

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103E66	#FFFFFF	#000000	##FFFFFF
##103E66	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4068

Deuteranopia (green-blind)

#1E3865

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #103e66;
/* rgb */ color: rgb(16, 62, 102);
/* oklch */ color: oklch(35.6% 0.085 249.1);

Tailwind

colors: {
  custom: {
    50: '#5e7292',
    500: '#103e66',
    950: '#000000',
  },
}

SCSS

$custom: #103e66;
$custom-light: #5e7292;
$custom-dark: #000000;

JSON

{
  "hex": "#103e66",
  "rgb": {
    "r": 16,
    "g": 62,
    "b": 102
  },
  "hsl": {
    "h": 207.907,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.35558,
    "c": 0.08481,
    "h": 249.1
  },
  "luminance": 0.04515
}

Semantic roles & 50–950 ramp

primary

#103E66

secondary

#9E6533

accent

#8E38F0

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05080D

muted

#797B7E

Preview Lab

Preview with #103E66

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

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