#103A66#103A66

#103A66 is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.5% C 0.089 H 252.9°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#103A66
RGB	rgb(16, 58, 102)
HSL	hsl(211, 73%, 23%)
HSV	hsv(211, 84%, 40%)
CMYK	cmyk(84.3%, 43.1%, 0%, 60%)
CIE-LAB	lab(23.98, 3.36, -29.90)
CIE-LCH	lch(23.98, 30.09, 276.40°)
OKLab	oklab(34.53% -0.0263 -0.0855)
OKLCH	oklch(34.53% 0.089 252.9)
XYZ	xyz(4.1241, 4.0951, 13.1409)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A66 #663C10

analogous

#106566 #103A66 #111066

triadic

#103A66 #66103A #3A6610

tetradic

#103A66 #661065 #663C10 #106611

square

#103A66 #661065 #663C10 #106611

split-complementary

#103A66 #661110 #656610

monochromatic

#040F1A #081C31 #103A66 #18589B #2176D0

Accessibility & contrast

On white

11.54

#103A66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#103A66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A66

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A66	#FFFFFF	#000000	##FFFFFF
##103A66	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253D68

Deuteranopia (green-blind)

#163565

Tritanopia (blue-blind)

#00444B

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103a66;
/* rgb */ color: rgb(16, 58, 102);
/* oklch */ color: oklch(34.5% 0.089 252.9);

Tailwind

colors: {
  custom: {
    50: '#5e6f92',
    500: '#103a66',
    950: '#000000',
  },
}

SCSS

$custom: #103a66;
$custom-light: #5e6f92;
$custom-dark: #000000;

JSON

{
  "hex": "#103a66",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 102
  },
  "hsl": {
    "h": 210.698,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34525,
    "c": 0.08945,
    "h": 252.9
  },
  "luminance": 0.04096
}

Semantic roles & 50–950 ramp

primary

#103A66

secondary

#9E6A33

accent

#9638F0

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #103A66

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

Preview Lab → · Contrast checker → · Palette generator →