#3173C5#3173C5

#3173C5 is a mid, vivid cyan. Relative luminance 0.169; OKLCH L 55.5% C 0.144 H 255.5°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3173C5
RGB	rgb(49, 115, 197)
HSL	hsl(213, 60%, 48%)
HSV	hsv(213, 75%, 77%)
CMYK	cmyk(75.1%, 41.6%, 0%, 22.7%)
CIE-LAB	lab(48.19, 7.62, -48.77)
CIE-LCH	lch(48.19, 49.36, 278.88°)
OKLab	oklab(55.52% -0.036 -0.1394)
OKLCH	oklch(55.52% 0.144 255.5)
XYZ	xyz(17.4717, 16.9437, 55.1621)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3173C5 #C58331

analogous

#31BDC5 #3173C5 #3931C5

triadic

#3173C5 #C53173 #73C531

tetradic

#3173C5 #C531BD #C58331 #31C539

square

#3173C5 #C531BD #C58331 #31C539

split-complementary

#3173C5 #C53931 #BDC531

monochromatic

#193A63 #255694 #3173C5 #5D93D7 #8EB4E3

Accessibility & contrast

On white

4.78

#3173C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3173C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3173C5

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3173C5	#FFFFFF	#000000	##FFFFFF
##3173C5	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7AC8

Deuteranopia (green-blind)

#326CC3

Tritanopia (blue-blind)

#008692

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3173c5;
/* rgb */ color: rgb(49, 115, 197);
/* oklch */ color: oklch(55.5% 0.144 255.5);

Tailwind

colors: {
  custom: {
    50: '#7d9ad7',
    500: '#3173c5',
    950: '#000000',
  },
}

SCSS

$custom: #3173c5;
$custom-light: #7d9ad7;
$custom-dark: #000000;

JSON

{
  "hex": "#3173c5",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 197
  },
  "hsl": {
    "h": 213.243,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.55522,
    "c": 0.14399,
    "h": 255.5
  },
  "luminance": 0.16946
}

Semantic roles & 50–950 ramp

primary

#3173C5

secondary

#CDAD85

accent

#9C44E3

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3173C5

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

Preview Lab → · Contrast checker → · Palette generator →