#166C81#166C81

#166C81 is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 49.3% C 0.083 H 219.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#166C81
RGB	rgb(22, 108, 129)
HSL	hsl(192, 71%, 30%)
HSV	hsv(192, 83%, 51%)
CMYK	cmyk(82.9%, 16.3%, 0%, 49.4%)
CIE-LAB	lab(41.97, -16.57, -18.58)
CIE-LCH	lch(41.97, 24.90, 228.27°)
OKLab	oklab(49.3% -0.0642 -0.052)
OKLCH	oklch(49.3% 0.083 219)
XYZ	xyz(9.6542, 12.4795, 22.6646)
Luminance	0.1248 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166C81 #812B16

analogous

#168161 #166C81 #163681

triadic

#166C81 #81166C #6C8116

tetradic

#166C81 #611681 #812B16 #368116

square

#166C81 #611681 #812B16 #368116

split-complementary

#166C81 #811636 #816116

monochromatic

#04161A #0D404D #166C81 #1F98B5 #35BCDD

Accessibility & contrast

On white

6.01

#166C81 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#166C81 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166C81

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166C81	#FFFFFF	#000000	##FFFFFF
##166C81	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F6982

Deuteranopia (green-blind)

#515F81

Tritanopia (blue-blind)

#007373

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #166c81;
/* rgb */ color: rgb(22, 108, 129);
/* oklch */ color: oklch(49.3% 0.083 219.0);

Tailwind

colors: {
  custom: {
    50: '#6896a5',
    500: '#166c81',
    950: '#000000',
  },
}

SCSS

$custom: #166c81;
$custom-light: #6896a5;
$custom-dark: #000000;

JSON

{
  "hex": "#166c81",
  "rgb": {
    "r": 22,
    "g": 108,
    "b": 129
  },
  "hsl": {
    "h": 191.776,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.49302,
    "c": 0.08264,
    "h": 219
  },
  "luminance": 0.12481
}

Semantic roles & 50–950 ramp

primary

#166C81

secondary

#B6553D

accent

#5D3AEE

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#070D0F

muted

#7A7E7F

Preview Lab

Preview with #166C81

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

Preview Lab → · Contrast checker → · Palette generator →