#3478BE#3478BE

#3478BE is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.3% C 0.129 H 251.7°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3478BE
RGB	rgb(52, 120, 190)
HSL	hsl(210, 57%, 47%)
HSV	hsv(210, 73%, 75%)
CMYK	cmyk(72.6%, 36.8%, 0%, 25.5%)
CIE-LAB	lab(49.35, 2.36, -42.89)
CIE-LCH	lch(49.35, 42.96, 273.14°)
OKLab	oklab(56.33% -0.0403 -0.1221)
OKLCH	oklch(56.33% 0.129 251.7)
XYZ	xyz(17.4234, 17.8788, 51.2379)
Luminance	0.1788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478BE #BE7A34

analogous

#34BDBE #3478BE #3534BE

triadic

#3478BE #BE3478 #78BE34

tetradic

#3478BE #BE34BD #BE7A34 #34BE35

square

#3478BE #BE34BD #BE7A34 #34BE35

split-complementary

#3478BE #BE3534 #BDBE34

monochromatic

#1A3B5E #275A8E #3478BE #5D97D3 #8DB6E0

Accessibility & contrast

On white

4.59

#3478BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3478BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3478BE

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478BE	#FFFFFF	#000000	##FFFFFF
##3478BE	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#587CC1

Deuteranopia (green-blind)

#436FBD

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3478be;
/* rgb */ color: rgb(52, 120, 190);
/* oklch */ color: oklch(56.3% 0.129 251.7);

Tailwind

colors: {
  custom: {
    50: '#7d9ed2',
    500: '#3478be',
    950: '#000000',
  },
}

SCSS

$custom: #3478be;
$custom-light: #7d9ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#3478be",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 190
  },
  "hsl": {
    "h": 210.435,
    "s": 57.025,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56327,
    "c": 0.12855,
    "h": 251.7
  },
  "luminance": 0.17881
}

Semantic roles & 50–950 ramp

primary

#3478BE

secondary

#CAA784

accent

#9548E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3478BE

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

Preview Lab → · Contrast checker → · Palette generator →