#166E8F#166E8F

#166E8F is a mid, moderate cyan. Relative luminance 0.133; OKLCH L 50.5% C 0.093 H 229.3°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#166E8F
RGB	rgb(22, 110, 143)
HSL	hsl(196, 73%, 32%)
HSV	hsv(196, 85%, 56%)
CMYK	cmyk(84.6%, 23.1%, 0%, 43.9%)
CIE-LAB	lab(43.22, -12.61, -25.05)
CIE-LCH	lch(43.22, 28.04, 243.28°)
OKLab	oklab(50.5% -0.0606 -0.0705)
OKLCH	oklch(50.5% 0.093 229.3)
XYZ	xyz(10.8627, 13.3042, 27.9767)
Luminance	0.1331 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166E8F #8F3716

analogous

#168F74 #166E8F #16318F

triadic

#166E8F #8F166E #6E8F16

tetradic

#166E8F #74168F #8F3716 #318F16

square

#166E8F #74168F #8F3716 #318F16

split-complementary

#166E8F #8F1631 #8F7416

monochromatic

#061C25 #0E455A #166E8F #1E97C4 #3EB5E1

Accessibility & contrast

On white

5.74

#166E8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#166E8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166E8F

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166E8F	#FFFFFF	#000000	##FFFFFF
##166E8F	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D6C91

Deuteranopia (green-blind)

#4D618F

Tritanopia (blue-blind)

#007779

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #166e8f;
/* rgb */ color: rgb(22, 110, 143);
/* oklch */ color: oklch(50.5% 0.093 229.3);

Tailwind

colors: {
  custom: {
    50: '#6a97b0',
    500: '#166e8f',
    950: '#000000',
  },
}

SCSS

$custom: #166e8f;
$custom-light: #6a97b0;
$custom-dark: #000000;

JSON

{
  "hex": "#166e8f",
  "rgb": {
    "r": 22,
    "g": 110,
    "b": 143
  },
  "hsl": {
    "h": 196.364,
    "s": 73.333,
    "l": 32.353
  },
  "oklch": {
    "l": 0.50504,
    "c": 0.09298,
    "h": 229.3
  },
  "luminance": 0.13306
}

Semantic roles & 50–950 ramp

primary

#166E8F

secondary

#C1633F

accent

#6A38F0

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166E8F

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

Preview Lab → · Contrast checker → · Palette generator →