#166578#166578

#166578 is a mid, moderate cyan. Relative luminance 0.108; OKLCH L 47.0% C 0.078 H 218.4°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#166578
RGB	rgb(22, 101, 120)
HSL	hsl(192, 69%, 28%)
HSV	hsv(192, 82%, 47%)
CMYK	cmyk(81.7%, 15.8%, 0%, 52.9%)
CIE-LAB	lab(39.30, -15.87, -17.23)
CIE-LCH	lch(39.30, 23.43, 227.35°)
OKLab	oklab(47.03% -0.0608 -0.0482)
OKLCH	oklch(47.03% 0.078 218.4)
XYZ	xyz(8.3733, 10.8330, 19.4153)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166578 #782916

analogous

#16785A #166578 #163478

triadic

#166578 #781665 #657816

tetradic

#166578 #5A1678 #782916 #347816

square

#166578 #5A1678 #782916 #347816

split-complementary

#166578 #781634 #785A16

monochromatic

#05161A #0D3944 #166578 #1F91AC #2FB8D9

Accessibility & contrast

On white

6.63

#166578 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#166578 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166578

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166578	#FFFFFF	#000000	##FFFFFF
##166578	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#596279

Deuteranopia (green-blind)

#4C5878

Tritanopia (blue-blind)

#006B6B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #166578;
/* rgb */ color: rgb(22, 101, 120);
/* oklch */ color: oklch(47.0% 0.078 218.4);

Tailwind

colors: {
  custom: {
    50: '#66919f',
    500: '#166578',
    950: '#000000',
  },
}

SCSS

$custom: #166578;
$custom-light: #66919f;
$custom-dark: #000000;

JSON

{
  "hex": "#166578",
  "rgb": {
    "r": 22,
    "g": 101,
    "b": 120
  },
  "hsl": {
    "h": 191.633,
    "s": 69.014,
    "l": 27.843
  },
  "oklch": {
    "l": 0.4703,
    "c": 0.0776,
    "h": 218.4
  },
  "luminance": 0.10834
}

Semantic roles & 50–950 ramp

primary

#166578

secondary

#AD523C

accent

#5E3CEC

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0E

muted

#7A7D7E

Preview Lab

Preview with #166578

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

Preview Lab → · Contrast checker → · Palette generator →