#3171AC#3171AC

#3171AC is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.5% C 0.114 H 249.2°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#3171AC
RGB	rgb(49, 113, 172)
HSL	hsl(209, 56%, 43%)
HSV	hsv(209, 72%, 67%)
CMYK	cmyk(71.5%, 34.3%, 0%, 32.5%)
CIE-LAB	lab(46.23, -0.37, -37.40)
CIE-LCH	lch(46.23, 37.40, 269.44°)
OKLab	oklab(53.55% -0.0403 -0.1061)
OKLCH	oklch(53.55% 0.114 249.2)
XYZ	xyz(14.6153, 15.4402, 41.2317)
Luminance	0.1544 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3171AC #AC6C31

analogous

#31ACA9 #3171AC #3134AC

triadic

#3171AC #AC3171 #71AC31

tetradic

#3171AC #A931AC #AC6C31 #34AC31

square

#3171AC #A931AC #AC6C31 #34AC31

split-complementary

#3171AC #AC3134 #ACA931

monochromatic

#16324D #23527C #3171AC #4E90CC #7DAEDA

Accessibility & contrast

On white

5.14

#3171AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#3171AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3171AC

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3171AC	#FFFFFF	#000000	##FFFFFF
##3171AC	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5674AE

Deuteranopia (green-blind)

#4568AB

Tritanopia (blue-blind)

#007F86

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3171ac;
/* rgb */ color: rgb(49, 113, 172);
/* oklch */ color: oklch(53.5% 0.114 249.2);

Tailwind

colors: {
  custom: {
    50: '#7899c5',
    500: '#3171ac',
    950: '#000000',
  },
}

SCSS

$custom: #3171ac;
$custom-light: #7899c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3171ac",
  "rgb": {
    "r": 49,
    "g": 113,
    "b": 172
  },
  "hsl": {
    "h": 208.78,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.53547,
    "c": 0.11354,
    "h": 249.2
  },
  "luminance": 0.15442
}

Semantic roles & 50–950 ramp

primary

#3171AC

secondary

#C39B76

accent

#9149DF

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3171AC

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

Preview Lab → · Contrast checker → · Palette generator →