#3173AC#3173AC

#3173AC is a mid, moderate cyan. Relative luminance 0.159; OKLCH L 54.0% C 0.112 H 247.7°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3173AC
RGB	rgb(49, 115, 172)
HSL	hsl(208, 56%, 43%)
HSV	hsv(208, 72%, 67%)
CMYK	cmyk(71.5%, 33.1%, 0%, 32.5%)
CIE-LAB	lab(46.83, -1.58, -36.45)
CIE-LCH	lch(46.83, 36.49, 267.51°)
OKLab	oklab(54.02% -0.0423 -0.1033)
OKLCH	oklch(54.02% 0.112 247.7)
XYZ	xyz(14.8409, 15.8914, 41.3069)
Luminance	0.1589 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3173AC #AC6A31

analogous

#31ACA7 #3173AC #3135AC

triadic

#3173AC #AC3173 #73AC31

tetradic

#3173AC #A731AC #AC6A31 #35AC31

square

#3173AC #A731AC #AC6A31 #35AC31

split-complementary

#3173AC #AC3135 #ACA731

monochromatic

#16334D #23537C #3173AC #4E92CC #7DAFDA

Accessibility & contrast

On white

5.03

#3173AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#3173AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3173AC

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3173AC	#FFFFFF	#000000	##FFFFFF
##3173AC	1.00	5.03	4.18	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5975AE

Deuteranopia (green-blind)

#486AAB

Tritanopia (blue-blind)

#008187

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3173ac;
/* rgb */ color: rgb(49, 115, 172);
/* oklch */ color: oklch(54.0% 0.112 247.7);

Tailwind

colors: {
  custom: {
    50: '#789bc5',
    500: '#3173ac',
    950: '#000000',
  },
}

SCSS

$custom: #3173ac;
$custom-light: #789bc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3173ac",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 172
  },
  "hsl": {
    "h": 207.805,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.54019,
    "c": 0.11168,
    "h": 247.7
  },
  "luminance": 0.15893
}

Semantic roles & 50–950 ramp

primary

#3173AC

secondary

#C39A76

accent

#8E49DF

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3173AC

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

Preview Lab → · Contrast checker → · Palette generator →