#3173BA#3173BA

#3173BA is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 54.8% C 0.130 H 252.7°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3173BA
RGB	rgb(49, 115, 186)
HSL	hsl(211, 58%, 46%)
HSV	hsv(211, 74%, 73%)
CMYK	cmyk(73.7%, 38.2%, 0%, 27.1%)
CIE-LAB	lab(47.57, 3.54, -43.42)
CIE-LCH	lch(47.57, 43.56, 274.66°)
OKLab	oklab(54.84% -0.0385 -0.1237)
OKLCH	oklch(54.84% 0.13 252.7)
XYZ	xyz(16.2570, 16.4578, 48.7647)
Luminance	0.1646 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3173BA #BA7831

analogous

#31B7BA #3173BA #3331BA

triadic

#3173BA #BA3173 #73BA31

tetradic

#3173BA #BA31B7 #BA7831 #31BA33

square

#3173BA #BA31B7 #BA7831 #31BA33

split-complementary

#3173BA #BA3331 #B7BA31

monochromatic

#173759 #24558A #3173BA #5692D2 #86B1DF

Accessibility & contrast

On white

4.89

#3173BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3173BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3173BA

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3173BA	#FFFFFF	#000000	##FFFFFF
##3173BA	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5278BD

Deuteranopia (green-blind)

#3D6BB9

Tritanopia (blue-blind)

#00848D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3173ba;
/* rgb */ color: rgb(49, 115, 186);
/* oklch */ color: oklch(54.8% 0.130 252.7);

Tailwind

colors: {
  custom: {
    50: '#7b9acf',
    500: '#3173ba',
    950: '#000000',
  },
}

SCSS

$custom: #3173ba;
$custom-light: #7b9acf;
$custom-dark: #000000;

JSON

{
  "hex": "#3173ba",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 186
  },
  "hsl": {
    "h": 211.095,
    "s": 58.298,
    "l": 46.078
  },
  "oklch": {
    "l": 0.54838,
    "c": 0.12958,
    "h": 252.7
  },
  "luminance": 0.1646
}

Semantic roles & 50–950 ramp

primary

#3173BA

secondary

#C9A57E

accent

#9746E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3173BA

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

Preview Lab → · Contrast checker → · Palette generator →