#166678#166678

#166678 is a mid, moderate cyan. Relative luminance 0.110; OKLCH L 47.3% C 0.078 H 217.1°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#166678
RGB	rgb(22, 102, 120)
HSL	hsl(191, 69%, 28%)
HSV	hsv(191, 82%, 47%)
CMYK	cmyk(81.7%, 15%, 0%, 52.9%)
CIE-LAB	lab(39.63, -16.44, -16.72)
CIE-LCH	lch(39.63, 23.45, 225.50°)
OKLab	oklab(47.3% -0.0619 -0.0467)
OKLCH	oklch(47.3% 0.078 217.1)
XYZ	xyz(8.4710, 11.0283, 19.4479)
Luminance	0.1103 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166678 #782816

analogous

#167859 #166678 #163578

triadic

#166678 #781666 #667816

tetradic

#166678 #591678 #782816 #357816

square

#166678 #591678 #782816 #357816

split-complementary

#166678 #781635 #785916

monochromatic

#05161A #0D3A44 #166678 #1F92AC #2FBAD9

Accessibility & contrast

On white

6.55

#166678 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#166678 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166678

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166678	#FFFFFF	#000000	##FFFFFF
##166678	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A6379

Deuteranopia (green-blind)

#4D5978

Tritanopia (blue-blind)

#006C6C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #166678;
/* rgb */ color: rgb(22, 102, 120);
/* oklch */ color: oklch(47.3% 0.078 217.1);

Tailwind

colors: {
  custom: {
    50: '#66919f',
    500: '#166678',
    950: '#000000',
  },
}

SCSS

$custom: #166678;
$custom-light: #66919f;
$custom-dark: #000000;

JSON

{
  "hex": "#166678",
  "rgb": {
    "r": 22,
    "g": 102,
    "b": 120
  },
  "hsl": {
    "h": 191.02,
    "s": 69.014,
    "l": 27.843
  },
  "oklch": {
    "l": 0.47296,
    "c": 0.07754,
    "h": 217.1
  },
  "luminance": 0.11029
}

Semantic roles & 50–950 ramp

primary

#166678

secondary

#AD513C

accent

#5C3CEC

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070D0E

muted

#7A7D7E

Preview Lab

Preview with #166678

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

Preview Lab → · Contrast checker → · Palette generator →