#3170BB#3170BB

#3170BB is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 54.2% C 0.134 H 254.6°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3170BB
RGB	rgb(49, 112, 187)
HSL	hsl(213, 58%, 46%)
HSV	hsv(213, 74%, 73%)
CMYK	cmyk(73.8%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(46.75, 5.77, -45.30)
CIE-LCH	lch(46.75, 45.67, 277.26°)
OKLab	oklab(54.22% -0.0355 -0.1293)
OKLCH	oklch(54.22% 0.134 254.6)
XYZ	xyz(16.0271, 15.8274, 49.2144)
Luminance	0.1583 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3170BB #BB7C31

analogous

#31B5BB #3170BB #3731BB

triadic

#3170BB #BB3170 #70BB31

tetradic

#3170BB #BB31B5 #BB7C31 #31BB37

square

#3170BB #BB31B5 #BB7C31 #31BB37

split-complementary

#3170BB #BB3731 #B5BB31

monochromatic

#18365A #24538B #3170BB #568FD3 #87AFE0

Accessibility & contrast

On white

5.04

#3170BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#3170BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3170BB

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3170BB	#FFFFFF	#000000	##FFFFFF
##3170BB	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D76BE

Deuteranopia (green-blind)

#3669B9

Tritanopia (blue-blind)

#00828C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3170bb;
/* rgb */ color: rgb(49, 112, 187);
/* oklch */ color: oklch(54.2% 0.134 254.6);

Tailwind

colors: {
  custom: {
    50: '#7b98d0',
    500: '#3170bb',
    950: '#000000',
  },
}

SCSS

$custom: #3170bb;
$custom-light: #7b98d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3170bb",
  "rgb": {
    "r": 49,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 212.609,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.54215,
    "c": 0.13409,
    "h": 254.6
  },
  "luminance": 0.15829
}

Semantic roles & 50–950 ramp

primary

#3170BB

secondary

#C9A77F

accent

#9B46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3170BB

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

Preview Lab → · Contrast checker → · Palette generator →