#166A8A#166A8A

#166A8A is a mid, moderate cyan. Relative luminance 0.123; OKLCH L 49.2% C 0.090 H 229.5°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#166A8A
RGB	rgb(22, 106, 138)
HSL	hsl(197, 73%, 31%)
HSV	hsv(197, 84%, 54%)
CMYK	cmyk(84.1%, 23.2%, 0%, 45.9%)
CIE-LAB	lab(41.71, -12.15, -24.40)
CIE-LCH	lch(41.71, 27.26, 243.54°)
OKLab	oklab(49.22% -0.0586 -0.0687)
OKLCH	oklch(49.22% 0.09 229.5)
XYZ	xyz(10.0705, 12.3124, 25.8856)
Luminance	0.1231 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166A8A #8A3616

analogous

#168A70 #166A8A #16308A

triadic

#166A8A #8A166A #6A8A16

tetradic

#166A8A #70168A #8A3616 #308A16

square

#166A8A #70168A #8A3616 #308A16

split-complementary

#166A8A #8A1630 #8A7016

monochromatic

#051920 #0E4155 #166A8A #1E93BF #3BB2E0

Accessibility & contrast

On white

6.06

#166A8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#166A8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166A8A

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166A8A	#FFFFFF	#000000	##FFFFFF
##166A8A	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59688C

Deuteranopia (green-blind)

#4A5E8A

Tritanopia (blue-blind)

#007375

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #166a8a;
/* rgb */ color: rgb(22, 106, 138);
/* oklch */ color: oklch(49.2% 0.090 229.5);

Tailwind

colors: {
  custom: {
    50: '#6994ac',
    500: '#166a8a',
    950: '#000000',
  },
}

SCSS

$custom: #166a8a;
$custom-light: #6994ac;
$custom-dark: #000000;

JSON

{
  "hex": "#166a8a",
  "rgb": {
    "r": 22,
    "g": 106,
    "b": 138
  },
  "hsl": {
    "h": 196.552,
    "s": 72.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.49222,
    "c": 0.09029,
    "h": 229.5
  },
  "luminance": 0.12314
}

Semantic roles & 50–950 ramp

primary

#166A8A

secondary

#BE613E

accent

#6B39EF

background

#F6F9FA

surface

#ECF1F4

border

#C7CBCE

text

#070D10

muted

#7A7E7F

Preview Lab

Preview with #166A8A

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

Preview Lab → · Contrast checker → · Palette generator →