#3478BC#3478BC

#3478BC is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.126 H 251.1°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3478BC
RGB	rgb(52, 120, 188)
HSL	hsl(210, 57%, 47%)
HSV	hsv(210, 72%, 74%)
CMYK	cmyk(72.3%, 36.2%, 0%, 26.3%)
CIE-LAB	lab(49.24, 1.63, -41.91)
CIE-LCH	lch(49.24, 41.94, 272.23°)
OKLab	oklab(56.21% -0.0408 -0.1192)
OKLCH	oklch(56.21% 0.126 251.1)
XYZ	xyz(17.2063, 17.7919, 50.0946)
Luminance	0.1779 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478BC #BC7834

analogous

#34BCBC #3478BC #3434BC

triadic

#3478BC #BC3478 #78BC34

tetradic

#3478BC #BC34BC #BC7834 #34BC34

square

#3478BC #BC34BC #BC7834 #34BC34

split-complementary

#3478BC #BC3434 #BCBC34

monochromatic

#193B5C #27598C #3478BC #5B97D2 #8BB5DF

Accessibility & contrast

On white

4.61

#3478BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3478BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3478BC

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478BC	#FFFFFF	#000000	##FFFFFF
##3478BC	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597CBF

Deuteranopia (green-blind)

#456FBB

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3478bc;
/* rgb */ color: rgb(52, 120, 188);
/* oklch */ color: oklch(56.2% 0.126 251.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3478bc",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 188
  },
  "hsl": {
    "h": 210,
    "s": 56.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.56209,
    "c": 0.12599,
    "h": 251.1
  },
  "luminance": 0.17794
}

Semantic roles & 50–950 ramp

primary

#3478BC

secondary

#C9A683

accent

#9448E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3478BC

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

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