#166D90#166D90

#166D90 is a mid, moderate cyan. Relative luminance 0.131; OKLCH L 50.3% C 0.094 H 231.1°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#166D90
RGB	rgb(22, 109, 144)
HSL	hsl(197, 73%, 33%)
HSV	hsv(197, 85%, 56%)
CMYK	cmyk(84.7%, 24.3%, 0%, 43.5%)
CIE-LAB	lab(42.94, -11.66, -26.07)
CIE-LCH	lch(42.94, 28.56, 245.91°)
OKLab	oklab(50.3% -0.0592 -0.0735)
OKLCH	oklch(50.3% 0.094 231.1)
XYZ	xyz(10.8315, 13.1201, 28.3417)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166D90 #903916

analogous

#169076 #166D90 #163090

triadic

#166D90 #90166D #6D9016

tetradic

#166D90 #761690 #903916 #309016

square

#166D90 #761690 #903916 #309016

split-complementary

#166D90 #901630 #907616

monochromatic

#061D26 #0E455B #166D90 #1E95C5 #3FB3E2

Accessibility & contrast

On white

5.79

#166D90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#166D90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166D90

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166D90	#FFFFFF	#000000	##FFFFFF
##166D90	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B6C92

Deuteranopia (green-blind)

#4B618F

Tritanopia (blue-blind)

#007779

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #166d90;
/* rgb */ color: rgb(22, 109, 144);
/* oklch */ color: oklch(50.3% 0.094 231.1);

Tailwind

colors: {
  custom: {
    50: '#6a96b0',
    500: '#166d90',
    950: '#000000',
  },
}

SCSS

$custom: #166d90;
$custom-light: #6a96b0;
$custom-dark: #000000;

JSON

{
  "hex": "#166d90",
  "rgb": {
    "r": 22,
    "g": 109,
    "b": 144
  },
  "hsl": {
    "h": 197.213,
    "s": 73.494,
    "l": 32.549
  },
  "oklch": {
    "l": 0.50299,
    "c": 0.09439,
    "h": 231.1
  },
  "luminance": 0.13121
}

Semantic roles & 50–950 ramp

primary

#166D90

secondary

#C26540

accent

#6D38F0

background

#F6F9FA

surface

#ECF2F5

border

#C7CCCF

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #166D90

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

Preview Lab → · Contrast checker → · Palette generator →