#166F8F#166F8F

#166F8F is a mid, moderate cyan. Relative luminance 0.135; OKLCH L 50.8% C 0.093 H 228.3°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#166F8F
RGB	rgb(22, 111, 143)
HSL	hsl(196, 73%, 32%)
HSV	hsv(196, 85%, 56%)
CMYK	cmyk(84.6%, 22.4%, 0%, 43.9%)
CIE-LAB	lab(43.54, -13.18, -24.55)
CIE-LCH	lch(43.54, 27.87, 241.77°)
OKLab	oklab(50.76% -0.0616 -0.0691)
OKLCH	oklch(50.76% 0.093 228.3)
XYZ	xyz(10.9712, 13.5212, 28.0129)
Luminance	0.1352 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166F8F #8F3616

analogous

#168F73 #166F8F #16328F

triadic

#166F8F #8F166F #6F8F16

tetradic

#166F8F #73168F #8F3616 #328F16

square

#166F8F #73168F #8F3616 #328F16

split-complementary

#166F8F #8F1632 #8F7316

monochromatic

#061D25 #0E465A #166F8F #1E98C4 #3EB6E1

Accessibility & contrast

On white

5.67

#166F8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#166F8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166F8F

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166F8F	#FFFFFF	#000000	##FFFFFF
##166F8F	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E6D91

Deuteranopia (green-blind)

#4E628F

Tritanopia (blue-blind)

#00787A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #166f8f;
/* rgb */ color: rgb(22, 111, 143);
/* oklch */ color: oklch(50.8% 0.093 228.3);

Tailwind

colors: {
  custom: {
    50: '#6a98b0',
    500: '#166f8f',
    950: '#000000',
  },
}

SCSS

$custom: #166f8f;
$custom-light: #6a98b0;
$custom-dark: #000000;

JSON

{
  "hex": "#166f8f",
  "rgb": {
    "r": 22,
    "g": 111,
    "b": 143
  },
  "hsl": {
    "h": 195.868,
    "s": 73.333,
    "l": 32.353
  },
  "oklch": {
    "l": 0.5076,
    "c": 0.09254,
    "h": 228.3
  },
  "luminance": 0.13523
}

Semantic roles & 50–950 ramp

primary

#166F8F

secondary

#C1623F

accent

#6938F0

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166F8F

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

Preview Lab → · Contrast checker → · Palette generator →