#3173C3#3173C3

#3173C3 is a mid, vivid cyan. Relative luminance 0.169; OKLCH L 55.4% C 0.141 H 255.1°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3173C3
RGB	rgb(49, 115, 195)
HSL	hsl(213, 60%, 48%)
HSV	hsv(213, 75%, 76%)
CMYK	cmyk(74.9%, 41%, 0%, 23.5%)
CIE-LAB	lab(48.07, 6.87, -47.80)
CIE-LCH	lch(48.07, 48.29, 278.18°)
OKLab	oklab(55.4% -0.0364 -0.1366)
OKLCH	oklch(55.4% 0.141 255.1)
XYZ	xyz(17.2440, 16.8526, 53.9632)
Luminance	0.1686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3173C3 #C38131

analogous

#31BCC3 #3173C3 #3831C3

triadic

#3173C3 #C33173 #73C331

tetradic

#3173C3 #C331BC #C38131 #31C338

square

#3173C3 #C331BC #C38131 #31C338

split-complementary

#3173C3 #C33831 #BCC331

monochromatic

#183961 #255692 #3173C3 #5B93D6 #8CB3E2

Accessibility & contrast

On white

4.80

#3173C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3173C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3173C3

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3173C3	#FFFFFF	#000000	##FFFFFF
##3173C3	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D79C6

Deuteranopia (green-blind)

#346CC1

Tritanopia (blue-blind)

#008691

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3173c3;
/* rgb */ color: rgb(49, 115, 195);
/* oklch */ color: oklch(55.4% 0.141 255.1);

Tailwind

colors: {
  custom: {
    50: '#7d9ad5',
    500: '#3173c3',
    950: '#000000',
  },
}

SCSS

$custom: #3173c3;
$custom-light: #7d9ad5;
$custom-dark: #000000;

JSON

{
  "hex": "#3173c3",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 195
  },
  "hsl": {
    "h": 212.877,
    "s": 59.836,
    "l": 47.843
  },
  "oklch": {
    "l": 0.55395,
    "c": 0.14135,
    "h": 255.1
  },
  "luminance": 0.16855
}

Semantic roles & 50–950 ramp

primary

#3173C3

secondary

#CCAB83

accent

#9B45E3

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3173C3

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

Preview Lab → · Contrast checker → · Palette generator →