#166F8D#166F8D

#166F8D is a mid, moderate cyan. Relative luminance 0.135; OKLCH L 50.7% C 0.091 H 226.7°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#166F8D
RGB	rgb(22, 111, 141)
HSL	hsl(195, 73%, 32%)
HSV	hsv(195, 84%, 55%)
CMYK	cmyk(84.4%, 21.3%, 0%, 44.7%)
CIE-LAB	lab(43.45, -13.92, -23.49)
CIE-LCH	lch(43.45, 27.31, 239.36°)
OKLab	oklab(50.66% -0.0623 -0.066)
OKLCH	oklch(50.66% 0.091 226.7)
XYZ	xyz(10.8210, 13.4612, 27.2221)
Luminance	0.1346 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166F8D #8D3416

analogous

#168D70 #166F8D #16348D

triadic

#166F8D #8D166F #6F8D16

tetradic

#166F8D #70168D #8D3416 #348D16

square

#166F8D #70168D #8D3416 #348D16

split-complementary

#166F8D #8D1634 #8D7016

monochromatic

#051C23 #0E4558 #166F8D #1E99C2 #3DB7E1

Accessibility & contrast

On white

5.69

#166F8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#166F8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166F8D

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166F8D	#FFFFFF	#000000	##FFFFFF
##166F8D	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F6D8E

Deuteranopia (green-blind)

#4F628D

Tritanopia (blue-blind)

#007879

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #166f8d;
/* rgb */ color: rgb(22, 111, 141);
/* oklch */ color: oklch(50.7% 0.091 226.7);

Tailwind

colors: {
  custom: {
    50: '#6a98ae',
    500: '#166f8d',
    950: '#000000',
  },
}

SCSS

$custom: #166f8d;
$custom-light: #6a98ae;
$custom-dark: #000000;

JSON

{
  "hex": "#166f8d",
  "rgb": {
    "r": 22,
    "g": 111,
    "b": 141
  },
  "hsl": {
    "h": 195.126,
    "s": 73.006,
    "l": 31.961
  },
  "oklch": {
    "l": 0.5066,
    "c": 0.09083,
    "h": 226.7
  },
  "luminance": 0.13463
}

Semantic roles & 50–950 ramp

primary

#166F8D

secondary

#C15F3E

accent

#6638F0

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166F8D

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

Preview Lab → · Contrast checker → · Palette generator →