#3170D0#3170D0

#3170D0 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.6% C 0.162 H 258.8°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3170D0
RGB	rgb(49, 112, 208)
HSL	hsl(216, 63%, 50%)
HSV	hsv(216, 76%, 82%)
CMYK	cmyk(76.4%, 46.2%, 0%, 18.4%)
CIE-LAB	lab(48.00, 13.61, -55.37)
CIE-LCH	lch(48.00, 57.02, 283.81°)
OKLab	oklab(55.59% -0.0313 -0.1589)
OKLCH	oklch(55.59% 0.162 258.8)
XYZ	xyz(18.4418, 16.7932, 61.9318)
Luminance	0.1679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3170D0 #D09131

analogous

#31C0D0 #3170D0 #4131D0

triadic

#3170D0 #D03170 #70D031

tetradic

#3170D0 #D031C0 #D09131 #31D041

square

#3170D0 #D031C0 #D09131 #31D041

split-complementary

#3170D0 #D04131 #C0D031

monochromatic

#193B6E #24559F #3170D0 #6393DB #95B5E7

Accessibility & contrast

On white

4.82

#3170D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3170D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3170D0

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3170D0	#FFFFFF	#000000	##FFFFFF
##3170D0	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D7AD4

Deuteranopia (green-blind)

#146BCE

Tritanopia (blue-blind)

#008796

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3170d0;
/* rgb */ color: rgb(49, 112, 208);
/* oklch */ color: oklch(55.6% 0.162 258.8);

Tailwind

colors: {
  custom: {
    50: '#7f98df',
    500: '#3170d0',
    950: '#000000',
  },
}

SCSS

$custom: #3170d0;
$custom-light: #7f98df;
$custom-dark: #000000;

JSON

{
  "hex": "#3170d0",
  "rgb": {
    "r": 49,
    "g": 112,
    "b": 208
  },
  "hsl": {
    "h": 216.226,
    "s": 62.846,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55588,
    "c": 0.16194,
    "h": 258.8
  },
  "luminance": 0.16795
}

Semantic roles & 50–950 ramp

primary

#3170D0

secondary

#D2B68B

accent

#A542E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3170D0

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

Preview Lab → · Contrast checker → · Palette generator →