#166381#166381

#166381 is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 46.9% C 0.085 H 229.7°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#166381
RGB	rgb(22, 99, 129)
HSL	hsl(197, 71%, 30%)
HSV	hsv(197, 83%, 51%)
CMYK	cmyk(82.9%, 23.3%, 0%, 49.4%)
CIE-LAB	lab(39.03, -11.41, -23.12)
CIE-LCH	lch(39.03, 25.78, 243.72°)
OKLab	oklab(46.95% -0.0551 -0.0651)
OKLCH	oklch(46.95% 0.085 229.7)
XYZ	xyz(8.7535, 10.6781, 22.3644)
Luminance	0.1068 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166381 #813416

analogous

#168169 #166381 #162E81

triadic

#166381 #811663 #638116

tetradic

#166381 #691681 #813416 #2E8116

square

#166381 #691681 #813416 #2E8116

split-complementary

#166381 #81162E #816916

monochromatic

#04141A #0D3B4D #166381 #1F8BB5 #35AEDD

Accessibility & contrast

On white

6.70

#166381 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#166381 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166381

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166381	#FFFFFF	#000000	##FFFFFF
##166381	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#546182

Deuteranopia (green-blind)

#455881

Tritanopia (blue-blind)

#006B6D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #166381;
/* rgb */ color: rgb(22, 99, 129);
/* oklch */ color: oklch(46.9% 0.085 229.7);

Tailwind

colors: {
  custom: {
    50: '#678fa5',
    500: '#166381',
    950: '#000000',
  },
}

SCSS

$custom: #166381;
$custom-light: #678fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#166381",
  "rgb": {
    "r": 22,
    "g": 99,
    "b": 129
  },
  "hsl": {
    "h": 196.822,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.46947,
    "c": 0.08526,
    "h": 229.7
  },
  "luminance": 0.10679
}

Semantic roles & 50–950 ramp

primary

#166381

secondary

#B65F3D

accent

#6C3AEE

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #166381

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

Preview Lab → · Contrast checker → · Palette generator →