#3172D1#3172D1

#3172D1 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.1% C 0.161 H 258.2°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3172D1
RGB	rgb(49, 114, 209)
HSL	hsl(216, 63%, 51%)
HSV	hsv(216, 77%, 82%)
CMYK	cmyk(76.6%, 45.5%, 0%, 18%)
CIE-LAB	lab(48.62, 12.72, -54.94)
CIE-LCH	lch(48.62, 56.39, 283.04°)
OKLab	oklab(56.09% -0.0328 -0.1576)
OKLCH	oklch(56.09% 0.161 258.2)
XYZ	xyz(18.7883, 17.2889, 62.6561)
Luminance	0.1729 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3172D1 #D19031

analogous

#31C2D1 #3172D1 #4031D1

triadic

#3172D1 #D13172 #72D131

tetradic

#3172D1 #D131C2 #D19031 #31D140

square

#3172D1 #D131C2 #D19031 #31D140

split-complementary

#3172D1 #D14031 #C2D131

monochromatic

#193C6F #2457A1 #3172D1 #6394DC #95B6E7

Accessibility & contrast

On white

4.71

#3172D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3172D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3172D1

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3172D1	#FFFFFF	#000000	##FFFFFF
##3172D1	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407BD5

Deuteranopia (green-blind)

#1B6DCF

Tritanopia (blue-blind)

#008997

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3172d1;
/* rgb */ color: rgb(49, 114, 209);
/* oklch */ color: oklch(56.1% 0.161 258.2);

Tailwind

colors: {
  custom: {
    50: '#8099e0',
    500: '#3172d1',
    950: '#000000',
  },
}

SCSS

$custom: #3172d1;
$custom-light: #8099e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3172d1",
  "rgb": {
    "r": 49,
    "g": 114,
    "b": 209
  },
  "hsl": {
    "h": 215.625,
    "s": 63.492,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56089,
    "c": 0.16094,
    "h": 258.2
  },
  "luminance": 0.17291
}

Semantic roles & 50–950 ramp

primary

#3172D1

secondary

#D2B68B

accent

#A341E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3172D1

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

Preview Lab → · Contrast checker → · Palette generator →