#3478BB#3478BB

#3478BB is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.125 H 250.8°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3478BB
RGB	rgb(52, 120, 187)
HSL	hsl(210, 56%, 47%)
HSV	hsv(210, 72%, 73%)
CMYK	cmyk(72.2%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(49.19, 1.27, -41.42)
CIE-LCH	lch(49.19, 41.44, 271.75°)
OKLab	oklab(56.15% -0.0411 -0.1177)
OKLCH	oklch(56.15% 0.125 250.8)
XYZ	xyz(17.0989, 17.7490, 49.5288)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478BB #BB7734

analogous

#34BBBB #3478BB #3435BB

triadic

#3478BB #BB3478 #78BB34

tetradic

#3478BB #BB34BB #BB7734 #35BB34

square

#3478BB #BB34BB #BB7734 #35BB34

split-complementary

#3478BB #BB3435 #BBBB34

monochromatic

#193B5B #27598B #3478BB #5B97D1 #8BB5DF

Accessibility & contrast

On white

4.62

#3478BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3478BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3478BB

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478BB	#FFFFFF	#000000	##FFFFFF
##3478BB	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7CBE

Deuteranopia (green-blind)

#466FBA

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3478bb;
/* rgb */ color: rgb(52, 120, 187);
/* oklch */ color: oklch(56.2% 0.125 250.8);

Tailwind

colors: {
  custom: {
    50: '#7c9ed0',
    500: '#3478bb',
    950: '#000000',
  },
}

SCSS

$custom: #3478bb;
$custom-light: #7c9ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3478bb",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 209.778,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56151,
    "c": 0.12472,
    "h": 250.8
  },
  "luminance": 0.17751
}

Semantic roles & 50–950 ramp

primary

#3478BB

secondary

#C9A582

accent

#9348E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3478BB

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

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