#3173C9#3173C9

#3173C9 is a mid, vivid cyan. Relative luminance 0.171; OKLCH L 55.8% C 0.149 H 256.4°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3173C9
RGB	rgb(49, 115, 201)
HSL	hsl(214, 61%, 49%)
HSV	hsv(214, 76%, 79%)
CMYK	cmyk(75.6%, 42.8%, 0%, 21.2%)
CIE-LAB	lab(48.42, 9.11, -50.69)
CIE-LCH	lch(48.42, 51.50, 280.19°)
OKLab	oklab(55.78% -0.0351 -0.1451)
OKLCH	oklch(55.78% 0.149 256.4)
XYZ	xyz(17.9361, 17.1294, 57.6080)
Luminance	0.1713 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3173C9 #C98731

analogous

#31BFC9 #3173C9 #3B31C9

triadic

#3173C9 #C93173 #73C931

tetradic

#3173C9 #C931BF #C98731 #31C93B

square

#3173C9 #C931BF #C98731 #31C93B

split-complementary

#3173C9 #C93B31 #BFC931

monochromatic

#193B67 #255798 #3173C9 #5F94D8 #90B5E4

Accessibility & contrast

On white

4.74

#3173C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3173C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3173C9

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3173C9	#FFFFFF	#000000	##FFFFFF
##3173C9	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#487ACC

Deuteranopia (green-blind)

#2C6DC7

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3173c9;
/* rgb */ color: rgb(49, 115, 201);
/* oklch */ color: oklch(55.8% 0.149 256.4);

Tailwind

colors: {
  custom: {
    50: '#7e9ada',
    500: '#3173c9',
    950: '#000000',
  },
}

SCSS

$custom: #3173c9;
$custom-light: #7e9ada;
$custom-dark: #000000;

JSON

{
  "hex": "#3173c9",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 201
  },
  "hsl": {
    "h": 213.947,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.55779,
    "c": 0.14926,
    "h": 256.4
  },
  "luminance": 0.17131
}

Semantic roles & 50–950 ramp

primary

#3173C9

secondary

#CFB087

accent

#9E44E4

background

#F8F9FD

surface

#EFF2FB

border

#CACCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3173C9

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

Preview Lab → · Contrast checker → · Palette generator →