#3478D3#3478D3

#3478D3 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.6% C 0.156 H 256.8°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3478D3
RGB	rgb(52, 120, 211)
HSL	hsl(214, 64%, 52%)
HSV	hsv(214, 75%, 83%)
CMYK	cmyk(75.4%, 43.1%, 0%, 17.3%)
CIE-LAB	lab(50.53, 10.07, -53.01)
CIE-LCH	lch(50.53, 53.96, 280.76°)
OKLab	oklab(57.63% -0.0355 -0.1518)
OKLCH	oklch(57.63% 0.156 256.8)
XYZ	xyz(19.8862, 18.8639, 64.2084)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478D3 #D38F34

analogous

#34C7D3 #3478D3 #4034D3

triadic

#3478D3 #D33478 #78D334

tetradic

#3478D3 #D334C7 #D38F34 #34D340

square

#3478D3 #D334C7 #D38F34 #34D340

split-complementary

#3478D3 #D34034 #C7D334

monochromatic

#194074 #245CA6 #3478D3 #6699DE #99BBE9

Accessibility & contrast

On white

4.40

#3478D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#3478D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3478D3

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478D3	#FFFFFF	#000000	##000000
##3478D3	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B80D7

Deuteranopia (green-blind)

#2D72D1

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3478d3;
/* rgb */ color: rgb(52, 120, 211);
/* oklch */ color: oklch(57.6% 0.156 256.8);

Tailwind

colors: {
  custom: {
    50: '#819ee1',
    500: '#3478d3',
    950: '#000000',
  },
}

SCSS

$custom: #3478d3;
$custom-light: #819ee1;
$custom-dark: #000000;

JSON

{
  "hex": "#3478d3",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 211
  },
  "hsl": {
    "h": 214.34,
    "s": 64.372,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57628,
    "c": 0.15588,
    "h": 256.8
  },
  "luminance": 0.18866
}

Semantic roles & 50–950 ramp

primary

#3478D3

secondary

#D4B68E

accent

#A040E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3478D3

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

Preview Lab → · Contrast checker → · Palette generator →