#3678D1#3678D1

#3678D1 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.6% C 0.153 H 256.9°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3678D1
RGB	rgb(54, 120, 209)
HSL	hsl(214, 63%, 52%)
HSV	hsv(214, 74%, 82%)
CMYK	cmyk(74.2%, 42.6%, 0%, 18%)
CIE-LAB	lab(50.47, 9.59, -51.96)
CIE-LCH	lch(50.47, 52.84, 280.45°)
OKLab	oklab(57.57% -0.0347 -0.1486)
OKLCH	oklch(57.57% 0.153 256.9)
XYZ	xyz(19.7422, 18.8184, 62.9011)
Luminance	0.1882 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3678D1 #D18F36

analogous

#36C5D1 #3678D1 #4236D1

triadic

#3678D1 #D13678 #78D136

tetradic

#3678D1 #D136C5 #D18F36 #36D142

square

#3678D1 #D136C5 #D18F36 #36D142

split-complementary

#3678D1 #D14236 #C5D136

monochromatic

#1A4072 #265CA4 #3678D1 #6899DC #9ABBE8

Accessibility & contrast

On white

4.41

#3678D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#3678D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3678D1

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3678D1	#FFFFFF	#000000	##000000
##3678D1	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C80D4

Deuteranopia (green-blind)

#3072CF

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3678d1;
/* rgb */ color: rgb(54, 120, 209);
/* oklch */ color: oklch(57.6% 0.153 256.9);

Tailwind

colors: {
  custom: {
    50: '#819edf',
    500: '#3678d1',
    950: '#000000',
  },
}

SCSS

$custom: #3678d1;
$custom-light: #819edf;
$custom-dark: #000000;

JSON

{
  "hex": "#3678d1",
  "rgb": {
    "r": 54,
    "g": 120,
    "b": 209
  },
  "hsl": {
    "h": 214.452,
    "s": 62.753,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57566,
    "c": 0.15263,
    "h": 256.9
  },
  "luminance": 0.18821
}

Semantic roles & 50–950 ramp

primary

#3678D1

secondary

#D3B68F

accent

#A042E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3678D1

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

Preview Lab → · Contrast checker → · Palette generator →