#3478D1#3478D1

#3478D1 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.5% C 0.153 H 256.4°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3478D1
RGB	rgb(52, 120, 209)
HSL	hsl(214, 63%, 51%)
HSV	hsv(214, 75%, 82%)
CMYK	cmyk(75.1%, 42.6%, 0%, 18%)
CIE-LAB	lab(50.41, 9.33, -52.07)
CIE-LCH	lch(50.41, 52.90, 280.16°)
OKLab	oklab(57.5% -0.0359 -0.149)
OKLCH	oklch(57.5% 0.153 256.4)
XYZ	xyz(19.6370, 18.7642, 62.8962)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478D1 #D18D34

analogous

#34C6D1 #3478D1 #3E34D1

triadic

#3478D1 #D13478 #78D134

tetradic

#3478D1 #D134C6 #D18D34 #34D13E

square

#3478D1 #D134C6 #D18D34 #34D13E

split-complementary

#3478D1 #D13E34 #C6D134

monochromatic

#1A3F71 #255BA3 #3478D1 #6699DC #98BAE8

Accessibility & contrast

On white

4.42

#3478D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3478D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3478D1

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478D1	#FFFFFF	#000000	##000000
##3478D1	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C80D4

Deuteranopia (green-blind)

#2F71CF

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3478d1;
/* rgb */ color: rgb(52, 120, 209);
/* oklch */ color: oklch(57.5% 0.153 256.4);

Tailwind

colors: {
  custom: {
    50: '#809edf',
    500: '#3478d1',
    950: '#000000',
  },
}

SCSS

$custom: #3478d1;
$custom-light: #809edf;
$custom-dark: #000000;

JSON

{
  "hex": "#3478d1",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 209
  },
  "hsl": {
    "h": 214.013,
    "s": 63.052,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57499,
    "c": 0.15325,
    "h": 256.4
  },
  "luminance": 0.18766
}

Semantic roles & 50–950 ramp

primary

#3478D1

secondary

#D3B58E

accent

#9F42E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3478D1

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

Preview Lab → · Contrast checker → · Palette generator →