#103D66#103D66

#103D66 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.086 H 250.1°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#103D66
RGB	rgb(16, 61, 102)
HSL	hsl(209, 73%, 23%)
HSV	hsv(209, 84%, 40%)
CMYK	cmyk(84.3%, 40.2%, 0%, 60%)
CIE-LAB	lab(24.97, 1.28, -28.33)
CIE-LCH	lch(24.97, 28.35, 272.59°)
OKLab	oklab(35.3% -0.0292 -0.0808)
OKLCH	oklch(35.3% 0.086 250.1)
XYZ	xyz(4.2798, 4.4064, 13.1928)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D66 #663910

analogous

#106664 #103D66 #101266

triadic

#103D66 #66103D #3D6610

tetradic

#103D66 #641066 #663910 #126610

square

#103D66 #641066 #663910 #126610

split-complementary

#103D66 #661012 #666410

monochromatic

#04101A #081D31 #103D66 #185D9B #217CD0

Accessibility & contrast

On white

11.16

#103D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#103D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D66

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D66	#FFFFFF	#000000	##FFFFFF
##103D66	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3F68

Deuteranopia (green-blind)

#1C3865

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #103d66;
/* rgb */ color: rgb(16, 61, 102);
/* oklch */ color: oklch(35.3% 0.086 250.1);

Tailwind

colors: {
  custom: {
    50: '#5e7292',
    500: '#103d66',
    950: '#000000',
  },
}

SCSS

$custom: #103d66;
$custom-light: #5e7292;
$custom-dark: #000000;

JSON

{
  "hex": "#103d66",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 208.605,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.35298,
    "c": 0.08593,
    "h": 250.1
  },
  "luminance": 0.04407
}

Semantic roles & 50–950 ramp

primary

#103D66

secondary

#9E6633

accent

#9038F0

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #103D66

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

Preview Lab → · Contrast checker → · Palette generator →