#105666#105666

#105666 is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.0% C 0.070 H 217.5°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#105666
RGB	rgb(16, 86, 102)
HSL	hsl(191, 73%, 23%)
HSV	hsv(191, 84%, 40%)
CMYK	cmyk(84.3%, 15.7%, 0%, 60%)
CIE-LAB	lab(33.40, -14.53, -15.15)
CIE-LCH	lch(33.40, 21.00, 226.20°)
OKLab	oklab(42% -0.0551 -0.0424)
OKLCH	oklch(42% 0.07 217.5)
XYZ	xyz(5.9387, 7.7243, 13.7457)
Luminance	0.0772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#105666 #662010

analogous

#10664B #105666 #102B66

triadic

#105666 #661056 #566610

tetradic

#105666 #4B1066 #662010 #2B6610

square

#105666 #4B1066 #662010 #2B6610

split-complementary

#105666 #66102B #664B10

monochromatic

#04161A #082931 #105666 #18839B #21AFD0

Accessibility & contrast

On white

8.25

#105666 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#105666 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #105666

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##105666	#FFFFFF	#000000	##FFFFFF
##105666	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5367

Deuteranopia (green-blind)

#404B66

Tritanopia (blue-blind)

#005C5B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #105666;
/* rgb */ color: rgb(16, 86, 102);
/* oklch */ color: oklch(42.0% 0.070 217.5);

Tailwind

colors: {
  custom: {
    50: '#5f8591',
    500: '#105666',
    950: '#000000',
  },
}

SCSS

$custom: #105666;
$custom-light: #5f8591;
$custom-dark: #000000;

JSON

{
  "hex": "#105666",
  "rgb": {
    "r": 16,
    "g": 86,
    "b": 102
  },
  "hsl": {
    "h": 191.163,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.42004,
    "c": 0.06954,
    "h": 217.5
  },
  "luminance": 0.07725
}

Semantic roles & 50–950 ramp

primary

#105666

secondary

#9E4733

accent

#5A38F0

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#050B0C

muted

#7A7C7D

Preview Lab

Preview with #105666

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

Preview Lab → · Contrast checker → · Palette generator →