#3166AB#3166AB

#3166AB is a mid, vivid cyan. Relative luminance 0.131; OKLCH L 50.9% C 0.124 H 256.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#3166AB
RGB	rgb(49, 102, 171)
HSL	hsl(214, 55%, 43%)
HSV	hsv(214, 71%, 67%)
CMYK	cmyk(71.3%, 40.4%, 0%, 32.9%)
CIE-LAB	lab(42.91, 6.11, -42.09)
CIE-LCH	lch(42.91, 42.53, 278.26°)
OKLab	oklab(50.93% -0.0298 -0.12)
OKLCH	oklch(50.93% 0.124 256.1)
XYZ	xyz(13.3660, 13.0946, 40.3433)
Luminance	0.1310 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3166AB #AB7631

analogous

#31A3AB #3166AB #3931AB

triadic

#3166AB #AB3166 #66AB31

tetradic

#3166AB #AB31A3 #AB7631 #31AB39

square

#3166AB #AB31A3 #AB7631 #31AB39

split-complementary

#3166AB #AB3931 #A3AB31

monochromatic

#162D4C #234A7B #3166AB #4D84CC #7DA5DA

Accessibility & contrast

On white

5.80

#3166AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#3166AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3166AB

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3166AB	#FFFFFF	#000000	##FFFFFF
##3166AB	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#466BAE

Deuteranopia (green-blind)

#3360AA

Tritanopia (blue-blind)

#007680

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3166ab;
/* rgb */ color: rgb(49, 102, 171);
/* oklch */ color: oklch(50.9% 0.124 256.1);

Tailwind

colors: {
  custom: {
    50: '#7891c4',
    500: '#3166ab',
    950: '#000000',
  },
}

SCSS

$custom: #3166ab;
$custom-light: #7891c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3166ab",
  "rgb": {
    "r": 49,
    "g": 102,
    "b": 171
  },
  "hsl": {
    "h": 213.934,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50929,
    "c": 0.12367,
    "h": 256.1
  },
  "luminance": 0.13096
}

Semantic roles & 50–950 ramp

primary

#3166AB

secondary

#C2A175

accent

#9E49DF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3166AB

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

Preview Lab → · Contrast checker → · Palette generator →