#3471DD#3471DD

#3471DD is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.8% C 0.177 H 260.8°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3471DD
RGB	rgb(52, 113, 221)
HSL	hsl(218, 71%, 54%)
HSV	hsv(218, 76%, 87%)
CMYK	cmyk(76.5%, 48.9%, 0%, 13.3%)
CIE-LAB	lab(49.20, 18.16, -60.81)
CIE-LCH	lch(49.20, 63.46, 286.63°)
OKLab	oklab(56.81% -0.0282 -0.1748)
OKLCH	oklch(56.81% 0.177 260.8)
XYZ	xyz(20.3677, 17.7584, 70.7469)
Luminance	0.1776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3471DD #DDA034

analogous

#34C6DD #3471DD #4B34DD

triadic

#3471DD #DD3471 #71DD34

tetradic

#3471DD #DD34C6 #DDA034 #34DD4B

square

#3471DD #DD34C6 #DDA034 #34DD4B

split-complementary

#3471DD #DD4B34 #C6DD34

monochromatic

#163C81 #1E55B5 #3471DD #6896E6 #9DBAEF

Accessibility & contrast

On white

4.61

#3471DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3471DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3471DD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3471DD	#FFFFFF	#000000	##FFFFFF
##3471DD	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#317DE1

Deuteranopia (green-blind)

#006EDB

Tritanopia (blue-blind)

#008B9C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3471dd;
/* rgb */ color: rgb(52, 113, 221);
/* oklch */ color: oklch(56.8% 0.177 260.8);

Tailwind

colors: {
  custom: {
    50: '#8399e8',
    500: '#3471dd',
    950: '#000000',
  },
}

SCSS

$custom: #3471dd;
$custom-light: #8399e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3471dd",
  "rgb": {
    "r": 52,
    "g": 113,
    "b": 221
  },
  "hsl": {
    "h": 218.343,
    "s": 71.308,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56806,
    "c": 0.17709,
    "h": 260.8
  },
  "luminance": 0.17761
}

Semantic roles & 50–950 ramp

primary

#3471DD

secondary

#DBC092

accent

#AD3AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3471DD

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

Preview Lab → · Contrast checker → · Palette generator →