#3173C8#3173C8

#3173C8 is a mid, vivid cyan. Relative luminance 0.171; OKLCH L 55.7% C 0.148 H 256.2°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3173C8
RGB	rgb(49, 115, 200)
HSL	hsl(214, 61%, 49%)
HSV	hsv(214, 76%, 78%)
CMYK	cmyk(75.5%, 42.5%, 0%, 21.6%)
CIE-LAB	lab(48.36, 8.73, -50.21)
CIE-LCH	lch(48.36, 50.96, 279.87°)
OKLab	oklab(55.71% -0.0353 -0.1436)
OKLCH	oklch(55.71% 0.148 256.2)
XYZ	xyz(17.8188, 17.0825, 56.9905)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3173C8 #C88631

analogous

#31BFC8 #3173C8 #3B31C8

triadic

#3173C8 #C83173 #73C831

tetradic

#3173C8 #C831BF #C88631 #31C83B

square

#3173C8 #C831BF #C88631 #31C83B

split-complementary

#3173C8 #C83B31 #BFC831

monochromatic

#193A66 #255797 #3173C8 #5F93D8 #90B4E4

Accessibility & contrast

On white

4.75

#3173C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3173C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3173C8

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3173C8	#FFFFFF	#000000	##FFFFFF
##3173C8	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#497ACB

Deuteranopia (green-blind)

#2E6CC6

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3173c8;
/* rgb */ color: rgb(49, 115, 200);
/* oklch */ color: oklch(55.7% 0.148 256.2);

Tailwind

colors: {
  custom: {
    50: '#7e9ad9',
    500: '#3173c8',
    950: '#000000',
  },
}

SCSS

$custom: #3173c8;
$custom-light: #7e9ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3173c8",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 200
  },
  "hsl": {
    "h": 213.775,
    "s": 60.643,
    "l": 48.824
  },
  "oklch": {
    "l": 0.55714,
    "c": 0.14793,
    "h": 256.2
  },
  "luminance": 0.17085
}

Semantic roles & 50–950 ramp

primary

#3173C8

secondary

#CEAF86

accent

#9E44E4

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3173C8

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

Preview Lab → · Contrast checker → · Palette generator →