#3678D0#3678D0

#3678D0 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.5% C 0.151 H 256.7°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3678D0
RGB	rgb(54, 120, 208)
HSL	hsl(214, 62%, 51%)
HSV	hsv(214, 74%, 82%)
CMYK	cmyk(74%, 42.3%, 0%, 18.4%)
CIE-LAB	lab(50.42, 9.22, -51.48)
CIE-LCH	lch(50.42, 52.30, 280.15°)
OKLab	oklab(57.5% -0.0349 -0.1472)
OKLCH	oklch(57.5% 0.151 256.7)
XYZ	xyz(19.6188, 18.7691, 62.2511)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3678D0 #D08E36

analogous

#36C5D0 #3678D0 #4136D0

triadic

#3678D0 #D03678 #78D036

tetradic

#3678D0 #D036C5 #D08E36 #36D041

square

#3678D0 #D036C5 #D08E36 #36D041

split-complementary

#3678D0 #D04136 #C5D036

monochromatic

#1A4071 #265BA3 #3678D0 #6899DC #99BBE7

Accessibility & contrast

On white

4.42

#3678D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3678D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3678D0

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3678D0	#FFFFFF	#000000	##000000
##3678D0	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D80D3

Deuteranopia (green-blind)

#3271CE

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3678d0;
/* rgb */ color: rgb(54, 120, 208);
/* oklch */ color: oklch(57.5% 0.151 256.7);

Tailwind

colors: {
  custom: {
    50: '#819edf',
    500: '#3678d0',
    950: '#000000',
  },
}

SCSS

$custom: #3678d0;
$custom-light: #819edf;
$custom-dark: #000000;

JSON

{
  "hex": "#3678d0",
  "rgb": {
    "r": 54,
    "g": 120,
    "b": 208
  },
  "hsl": {
    "h": 214.286,
    "s": 62.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57502,
    "c": 0.15132,
    "h": 256.7
  },
  "luminance": 0.18771
}

Semantic roles & 50–950 ramp

primary

#3678D0

secondary

#D3B68F

accent

#A043E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3678D0

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

Preview Lab → · Contrast checker → · Palette generator →