#3678C6#3678C6

#3678C6 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.9% C 0.138 H 254.4°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3678C6
RGB	rgb(54, 120, 198)
HSL	hsl(213, 57%, 49%)
HSV	hsv(213, 73%, 78%)
CMYK	cmyk(72.7%, 39.4%, 0%, 22.4%)
CIE-LAB	lab(49.85, 5.55, -46.68)
CIE-LCH	lch(49.85, 47.01, 276.78°)
OKLab	oklab(56.88% -0.0371 -0.1331)
OKLCH	oklch(56.88% 0.138 254.4)
XYZ	xyz(18.4271, 18.2924, 55.9748)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3678C6 #C68436

analogous

#36C0C6 #3678C6 #3C36C6

triadic

#3678C6 #C63678 #78C636

tetradic

#3678C6 #C636C0 #C68436 #36C63C

square

#3678C6 #C636C0 #C68436 #36C63C

split-complementary

#3678C6 #C63C36 #C0C636

monochromatic

#1C3E66 #295B96 #3678C6 #6498D5 #94B8E2

Accessibility & contrast

On white

4.51

#3678C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3678C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3678C6

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3678C6	#FFFFFF	#000000	##000000
##3678C6	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547EC9

Deuteranopia (green-blind)

#3D70C4

Tritanopia (blue-blind)

#008A95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3678c6;
/* rgb */ color: rgb(54, 120, 198);
/* oklch */ color: oklch(56.9% 0.138 254.4);

Tailwind

colors: {
  custom: {
    50: '#7f9ed8',
    500: '#3678c6',
    950: '#000000',
  },
}

SCSS

$custom: #3678c6;
$custom-light: #7f9ed8;
$custom-dark: #000000;

JSON

{
  "hex": "#3678c6",
  "rgb": {
    "r": 54,
    "g": 120,
    "b": 198
  },
  "hsl": {
    "h": 212.5,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.56877,
    "c": 0.13821,
    "h": 254.4
  },
  "luminance": 0.18294
}

Semantic roles & 50–950 ramp

primary

#3678C6

secondary

#CDAF8B

accent

#9A47E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3678C6

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

Preview Lab → · Contrast checker → · Palette generator →