#3478B4#3478B4

#3478B4 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.8% C 0.116 H 248.2°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3478B4
RGB	rgb(52, 120, 180)
HSL	hsl(208, 55%, 45%)
HSV	hsv(208, 71%, 71%)
CMYK	cmyk(71.1%, 33.3%, 0%, 29.4%)
CIE-LAB	lab(48.83, -1.26, -37.94)
CIE-LCH	lch(48.83, 37.96, 268.09°)
OKLab	oklab(55.75% -0.043 -0.1076)
OKLCH	oklch(55.75% 0.116 248.2)
XYZ	xyz(16.3678, 17.4565, 45.6780)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478B4 #B47034

analogous

#34B4B0 #3478B4 #3438B4

triadic

#3478B4 #B43478 #78B434

tetradic

#3478B4 #B034B4 #B47034 #38B434

square

#3478B4 #B034B4 #B47034 #38B434

split-complementary

#3478B4 #B43438 #B4B034

monochromatic

#193955 #265885 #3478B4 #5796CE #86B4DC

Accessibility & contrast

On white

4.68

#3478B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3478B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3478B4

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478B4	#FFFFFF	#000000	##FFFFFF
##3478B4	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7BB7

Deuteranopia (green-blind)

#4B6FB3

Tritanopia (blue-blind)

#00868E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3478b4;
/* rgb */ color: rgb(52, 120, 180);
/* oklch */ color: oklch(55.8% 0.116 248.2);

Tailwind

colors: {
  custom: {
    50: '#7b9ecb',
    500: '#3478b4',
    950: '#000000',
  },
}

SCSS

$custom: #3478b4;
$custom-light: #7b9ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#3478b4",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 180
  },
  "hsl": {
    "h": 208.125,
    "s": 55.172,
    "l": 45.49
  },
  "oklch": {
    "l": 0.55751,
    "c": 0.11589,
    "h": 248.2
  },
  "luminance": 0.17458
}

Semantic roles & 50–950 ramp

primary

#3478B4

secondary

#C6A07E

accent

#8F49DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3478B4

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

Preview Lab → · Contrast checker → · Palette generator →