#166C8D#166C8D

#166C8D is a mid, moderate cyan. Relative luminance 0.128; OKLCH L 49.9% C 0.092 H 229.8°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#166C8D
RGB	rgb(22, 108, 141)
HSL	hsl(197, 73%, 32%)
HSV	hsv(197, 84%, 55%)
CMYK	cmyk(84.4%, 23.4%, 0%, 44.7%)
CIE-LAB	lab(42.49, -12.19, -24.99)
CIE-LCH	lch(42.49, 27.80, 243.99°)
OKLab	oklab(49.89% -0.0594 -0.0704)
OKLCH	oklch(49.89% 0.092 229.8)
XYZ	xyz(10.4992, 12.8175, 27.1148)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166C8D #8D3716

analogous

#168D73 #166C8D #16308D

triadic

#166C8D #8D166C #6C8D16

tetradic

#166C8D #73168D #8D3716 #308D16

square

#166C8D #73168D #8D3716 #308D16

split-complementary

#166C8D #8D1630 #8D7316

monochromatic

#051B23 #0E4358 #166C8D #1E95C2 #3DB3E1

Accessibility & contrast

On white

5.89

#166C8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#166C8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166C8D

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166C8D	#FFFFFF	#000000	##FFFFFF
##166C8D	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B6A8F

Deuteranopia (green-blind)

#4B608D

Tritanopia (blue-blind)

#007577

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #166c8d;
/* rgb */ color: rgb(22, 108, 141);
/* oklch */ color: oklch(49.9% 0.092 229.8);

Tailwind

colors: {
  custom: {
    50: '#6a96ae',
    500: '#166c8d',
    950: '#000000',
  },
}

SCSS

$custom: #166c8d;
$custom-light: #6a96ae;
$custom-dark: #000000;

JSON

{
  "hex": "#166c8d",
  "rgb": {
    "r": 22,
    "g": 108,
    "b": 141
  },
  "hsl": {
    "h": 196.639,
    "s": 73.006,
    "l": 31.961
  },
  "oklch": {
    "l": 0.49889,
    "c": 0.0921,
    "h": 229.8
  },
  "luminance": 0.12819
}

Semantic roles & 50–950 ramp

primary

#166C8D

secondary

#C1623E

accent

#6B38F0

background

#F6F9FA

surface

#ECF1F4

border

#C7CBCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166C8D

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

Preview Lab → · Contrast checker → · Palette generator →