#166D8F#166D8F

#166D8F is a mid, moderate cyan. Relative luminance 0.131; OKLCH L 50.2% C 0.093 H 230.4°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#166D8F
RGB	rgb(22, 109, 143)
HSL	hsl(197, 73%, 32%)
HSV	hsv(197, 85%, 56%)
CMYK	cmyk(84.6%, 23.8%, 0%, 43.9%)
CIE-LAB	lab(42.90, -12.03, -25.55)
CIE-LCH	lch(42.90, 28.24, 244.79°)
OKLab	oklab(50.25% -0.0596 -0.072)
OKLCH	oklch(50.25% 0.093 230.4)
XYZ	xyz(10.7554, 13.0897, 27.9410)
Luminance	0.1309 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166D8F #8F3816

analogous

#168F75 #166D8F #16308F

triadic

#166D8F #8F166D #6D8F16

tetradic

#166D8F #75168F #8F3816 #308F16

square

#166D8F #75168F #8F3816 #308F16

split-complementary

#166D8F #8F1630 #8F7516

monochromatic

#061C25 #0E455A #166D8F #1E95C4 #3EB3E1

Accessibility & contrast

On white

5.80

#166D8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#166D8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166D8F

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166D8F	#FFFFFF	#000000	##FFFFFF
##166D8F	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C6B91

Deuteranopia (green-blind)

#4C608F

Tritanopia (blue-blind)

#007678

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #166d8f;
/* rgb */ color: rgb(22, 109, 143);
/* oklch */ color: oklch(50.2% 0.093 230.4);

Tailwind

colors: {
  custom: {
    50: '#6a96b0',
    500: '#166d8f',
    950: '#000000',
  },
}

SCSS

$custom: #166d8f;
$custom-light: #6a96b0;
$custom-dark: #000000;

JSON

{
  "hex": "#166d8f",
  "rgb": {
    "r": 22,
    "g": 109,
    "b": 143
  },
  "hsl": {
    "h": 196.86,
    "s": 73.333,
    "l": 32.353
  },
  "oklch": {
    "l": 0.50248,
    "c": 0.09346,
    "h": 230.4
  },
  "luminance": 0.13091
}

Semantic roles & 50–950 ramp

primary

#166D8F

secondary

#C1643F

accent

#6C38F0

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166D8F

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

Preview Lab → · Contrast checker → · Palette generator →