#166E8D#166E8D

#166E8D is a mid, moderate cyan. Relative luminance 0.132; OKLCH L 50.4% C 0.091 H 227.7°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#166E8D
RGB	rgb(22, 110, 141)
HSL	hsl(196, 73%, 32%)
HSV	hsv(196, 84%, 55%)
CMYK	cmyk(84.4%, 22%, 0%, 44.7%)
CIE-LAB	lab(43.13, -13.35, -23.99)
CIE-LCH	lch(43.13, 27.45, 240.92°)
OKLab	oklab(50.4% -0.0614 -0.0675)
OKLCH	oklch(50.4% 0.091 227.7)
XYZ	xyz(10.7125, 13.2442, 27.1859)
Luminance	0.1325 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166E8D #8D3516

analogous

#168D71 #166E8D #16338D

triadic

#166E8D #8D166E #6E8D16

tetradic

#166E8D #71168D #8D3516 #338D16

square

#166E8D #71168D #8D3516 #338D16

split-complementary

#166E8D #8D1633 #8D7116

monochromatic

#051B23 #0E4558 #166E8D #1E97C2 #3DB6E1

Accessibility & contrast

On white

5.75

#166E8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#166E8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166E8D

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166E8D	#FFFFFF	#000000	##FFFFFF
##166E8D	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E6C8F

Deuteranopia (green-blind)

#4E618D

Tritanopia (blue-blind)

#007778

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #166e8d;
/* rgb */ color: rgb(22, 110, 141);
/* oklch */ color: oklch(50.4% 0.091 227.7);

Tailwind

colors: {
  custom: {
    50: '#6a97ae',
    500: '#166e8d',
    950: '#000000',
  },
}

SCSS

$custom: #166e8d;
$custom-light: #6a97ae;
$custom-dark: #000000;

JSON

{
  "hex": "#166e8d",
  "rgb": {
    "r": 22,
    "g": 110,
    "b": 141
  },
  "hsl": {
    "h": 195.63,
    "s": 73.006,
    "l": 31.961
  },
  "oklch": {
    "l": 0.50403,
    "c": 0.09121,
    "h": 227.7
  },
  "luminance": 0.13246
}

Semantic roles & 50–950 ramp

primary

#166E8D

secondary

#C1603E

accent

#6838F0

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166E8D

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

Preview Lab → · Contrast checker → · Palette generator →