#166A8D#166A8D

#166A8D is a mid, moderate cyan. Relative luminance 0.124; OKLCH L 49.4% C 0.093 H 231.9°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#166A8D
RGB	rgb(22, 106, 141)
HSL	hsl(198, 73%, 32%)
HSV	hsv(198, 84%, 55%)
CMYK	cmyk(84.4%, 24.8%, 0%, 44.7%)
CIE-LAB	lab(41.85, -11.03, -25.99)
CIE-LCH	lch(41.85, 28.23, 247.01°)
OKLab	oklab(49.38% -0.0574 -0.0733)
OKLCH	oklch(49.38% 0.093 231.9)
XYZ	xyz(10.2907, 12.4004, 27.0453)
Luminance	0.1240 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166A8D #8D3916

analogous

#168D75 #166A8D #162F8D

triadic

#166A8D #8D166A #6A8D16

tetradic

#166A8D #75168D #8D3916 #2F8D16

square

#166A8D #75168D #8D3916 #2F8D16

split-complementary

#166A8D #8D162F #8D7516

monochromatic

#051A23 #0E4258 #166A8D #1E92C2 #3DB0E1

Accessibility & contrast

On white

6.03

#166A8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#166A8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166A8D

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166A8D	#FFFFFF	#000000	##FFFFFF
##166A8D	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58698F

Deuteranopia (green-blind)

#495E8C

Tritanopia (blue-blind)

#007376

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #166a8d;
/* rgb */ color: rgb(22, 106, 141);
/* oklch */ color: oklch(49.4% 0.093 231.9);

Tailwind

colors: {
  custom: {
    50: '#6a94ae',
    500: '#166a8d',
    950: '#000000',
  },
}

SCSS

$custom: #166a8d;
$custom-light: #6a94ae;
$custom-dark: #000000;

JSON

{
  "hex": "#166a8d",
  "rgb": {
    "r": 22,
    "g": 106,
    "b": 141
  },
  "hsl": {
    "h": 197.647,
    "s": 73.006,
    "l": 31.961
  },
  "oklch": {
    "l": 0.49377,
    "c": 0.09312,
    "h": 231.9
  },
  "luminance": 0.12402
}

Semantic roles & 50–950 ramp

primary

#166A8D

secondary

#C1653E

accent

#6E38F0

background

#F6F9FA

surface

#ECF1F4

border

#C7CBCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166A8D

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

Preview Lab → · Contrast checker → · Palette generator →