#166383#166383

#166383 is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.1% C 0.087 H 231.5°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#166383
RGB	rgb(22, 99, 131)
HSL	hsl(198, 71%, 30%)
HSV	hsv(198, 83%, 51%)
CMYK	cmyk(83.2%, 24.4%, 0%, 48.6%)
CIE-LAB	lab(39.13, -10.66, -24.19)
CIE-LCH	lch(39.13, 26.44, 246.21°)
OKLab	oklab(47.05% -0.0543 -0.0682)
OKLCH	oklch(47.05% 0.087 231.5)
XYZ	xyz(8.8878, 10.7318, 23.0714)
Luminance	0.1073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166383 #833616

analogous

#16836D #166383 #162C83

triadic

#166383 #831663 #638316

tetradic

#166383 #6D1683 #833616 #2C8316

square

#166383 #6D1683 #833616 #2C8316

split-complementary

#166383 #83162C #836D16

monochromatic

#04141A #0D3B4F #166383 #1F8BB7 #36ACDD

Accessibility & contrast

On white

6.67

#166383 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#166383 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166383

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166383	#FFFFFF	#000000	##FFFFFF
##166383	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536285

Deuteranopia (green-blind)

#445883

Tritanopia (blue-blind)

#006C6E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #166383;
/* rgb */ color: rgb(22, 99, 131);
/* oklch */ color: oklch(47.1% 0.087 231.5);

Tailwind

colors: {
  custom: {
    50: '#678fa7',
    500: '#166383',
    950: '#000000',
  },
}

SCSS

$custom: #166383;
$custom-light: #678fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#166383",
  "rgb": {
    "r": 22,
    "g": 99,
    "b": 131
  },
  "hsl": {
    "h": 197.615,
    "s": 71.242,
    "l": 30
  },
  "oklch": {
    "l": 0.47051,
    "c": 0.08717,
    "h": 231.5
  },
  "luminance": 0.10733
}

Semantic roles & 50–950 ramp

primary

#166383

secondary

#B7613D

accent

#6F3AEE

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #166383

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

Preview Lab → · Contrast checker → · Palette generator →