#3678C8#3678C8

#3678C8 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.0% C 0.141 H 254.9°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3678C8
RGB	rgb(54, 120, 200)
HSL	hsl(213, 57%, 50%)
HSV	hsv(213, 73%, 78%)
CMYK	cmyk(73%, 40%, 0%, 21.6%)
CIE-LAB	lab(49.96, 6.28, -47.65)
CIE-LCH	lch(49.96, 48.06, 277.51°)
OKLab	oklab(57% -0.0366 -0.136)
OKLCH	oklch(57% 0.141 254.9)
XYZ	xyz(18.6593, 18.3853, 57.1977)
Luminance	0.1839 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3678C8 #C88636

analogous

#36C1C8 #3678C8 #3D36C8

triadic

#3678C8 #C83678 #78C836

tetradic

#3678C8 #C836C1 #C88636 #36C83D

square

#3678C8 #C836C1 #C88636 #36C83D

split-complementary

#3678C8 #C83D36 #C1C836

monochromatic

#1C3E68 #295B98 #3678C8 #6698D6 #96B9E3

Accessibility & contrast

On white

4.49

#3678C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3678C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3678C8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3678C8	#FFFFFF	#000000	##000000
##3678C8	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527ECB

Deuteranopia (green-blind)

#3B71C6

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3678c8;
/* rgb */ color: rgb(54, 120, 200);
/* oklch */ color: oklch(57.0% 0.141 254.9);

Tailwind

colors: {
  custom: {
    50: '#7f9ed9',
    500: '#3678c8',
    950: '#000000',
  },
}

SCSS

$custom: #3678c8;
$custom-light: #7f9ed9;
$custom-dark: #000000;

JSON

{
  "hex": "#3678c8",
  "rgb": {
    "r": 54,
    "g": 120,
    "b": 200
  },
  "hsl": {
    "h": 212.877,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.57,
    "c": 0.14083,
    "h": 254.9
  },
  "luminance": 0.18387
}

Semantic roles & 50–950 ramp

primary

#3678C8

secondary

#CEB08C

accent

#9B47E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3678C8

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

Preview Lab → · Contrast checker → · Palette generator →