#166B81#166B81

#166B81 is a mid, moderate cyan. Relative luminance 0.123; OKLCH L 49.0% C 0.083 H 220.2°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#166B81
RGB	rgb(22, 107, 129)
HSL	hsl(192, 71%, 30%)
HSV	hsv(192, 83%, 51%)
CMYK	cmyk(82.9%, 17.1%, 0%, 49.4%)
CIE-LAB	lab(41.64, -16.01, -19.09)
CIE-LCH	lch(41.64, 24.91, 230.00°)
OKLab	oklab(49.04% -0.0632 -0.0534)
OKLCH	oklch(49.04% 0.083 220.2)
XYZ	xyz(9.5493, 12.2697, 22.6296)
Luminance	0.1227 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166B81 #812C16

analogous

#168161 #166B81 #163681

triadic

#166B81 #81166B #6B8116

tetradic

#166B81 #611681 #812C16 #368116

square

#166B81 #611681 #812C16 #368116

split-complementary

#166B81 #811636 #816116

monochromatic

#04161A #0D404D #166B81 #1F96B5 #35BADD

Accessibility & contrast

On white

6.08

#166B81 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#166B81 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166B81

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166B81	#FFFFFF	#000000	##FFFFFF
##166B81	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E6882

Deuteranopia (green-blind)

#505E81

Tritanopia (blue-blind)

#007272

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #166b81;
/* rgb */ color: rgb(22, 107, 129);
/* oklch */ color: oklch(49.0% 0.083 220.2);

Tailwind

colors: {
  custom: {
    50: '#6895a5',
    500: '#166b81',
    950: '#000000',
  },
}

SCSS

$custom: #166b81;
$custom-light: #6895a5;
$custom-dark: #000000;

JSON

{
  "hex": "#166b81",
  "rgb": {
    "r": 22,
    "g": 107,
    "b": 129
  },
  "hsl": {
    "h": 192.336,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.49039,
    "c": 0.08277,
    "h": 220.2
  },
  "luminance": 0.12271
}

Semantic roles & 50–950 ramp

primary

#166B81

secondary

#B6563D

accent

#5F3AEE

background

#F6F9FA

surface

#ECF1F4

border

#C7CBCE

text

#070D0F

muted

#7A7E7F

Preview Lab

Preview with #166B81

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

Preview Lab → · Contrast checker → · Palette generator →