#3478B8#3478B8

#3478B8 is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.121 H 249.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3478B8
RGB	rgb(52, 120, 184)
HSL	hsl(209, 56%, 46%)
HSV	hsv(209, 72%, 72%)
CMYK	cmyk(71.7%, 34.8%, 0%, 27.8%)
CIE-LAB	lab(49.03, 0.18, -39.93)
CIE-LCH	lch(49.03, 39.93, 270.26°)
OKLab	oklab(55.98% -0.0419 -0.1134)
OKLCH	oklch(55.98% 0.121 249.7)
XYZ	xyz(16.7811, 17.6219, 47.8551)
Luminance	0.1762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478B8 #B87434

analogous

#34B8B6 #3478B8 #3436B8

triadic

#3478B8 #B83478 #78B834

tetradic

#3478B8 #B634B8 #B87434 #36B834

square

#3478B8 #B634B8 #B87434 #36B834

split-complementary

#3478B8 #B83436 #B8B634

monochromatic

#193A59 #275988 #3478B8 #5996D0 #89B4DE

Accessibility & contrast

On white

4.64

#3478B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3478B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3478B8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478B8	#FFFFFF	#000000	##FFFFFF
##3478B8	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7BBB

Deuteranopia (green-blind)

#486FB7

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3478b8;
/* rgb */ color: rgb(52, 120, 184);
/* oklch */ color: oklch(56.0% 0.121 249.7);

Tailwind

colors: {
  custom: {
    50: '#7c9ecd',
    500: '#3478b8',
    950: '#000000',
  },
}

SCSS

$custom: #3478b8;
$custom-light: #7c9ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#3478b8",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 184
  },
  "hsl": {
    "h": 209.091,
    "s": 55.932,
    "l": 46.275
  },
  "oklch": {
    "l": 0.55978,
    "c": 0.12091,
    "h": 249.7
  },
  "luminance": 0.17624
}

Semantic roles & 50–950 ramp

primary

#3478B8

secondary

#C8A380

accent

#9249DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3478B8

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

Preview Lab → · Contrast checker → · Palette generator →