#3679CB#3679CB

#3679CB is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.4% C 0.144 H 255.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3679CB
RGB	rgb(54, 121, 203)
HSL	hsl(213, 59%, 50%)
HSV	hsv(213, 73%, 80%)
CMYK	cmyk(73.4%, 40.4%, 0%, 20.4%)
CIE-LAB	lab(50.42, 6.77, -48.64)
CIE-LCH	lch(50.42, 49.11, 277.92°)
OKLab	oklab(57.41% -0.0368 -0.1389)
OKLCH	oklch(57.41% 0.144 255.1)
XYZ	xyz(19.1342, 18.7687, 59.1026)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3679CB #CB8836

analogous

#36C3CB #3679CB #3D36CB

triadic

#3679CB #CB3679 #79CB36

tetradic

#3679CB #CB36C3 #CB8836 #36CB3D

square

#3679CB #CB36C3 #CB8836 #36CB3D

split-complementary

#3679CB #CB3D36 #C3CB36

monochromatic

#1C3F6B #285C9C #3679CB #6799D8 #97BAE4

Accessibility & contrast

On white

4.42

#3679CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3679CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3679CB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3679CB	#FFFFFF	#000000	##000000
##3679CB	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)

#527FCE

Deuteranopia (green-blind)

#3A72C9

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3679cb;
/* rgb */ color: rgb(54, 121, 203);
/* oklch */ color: oklch(57.4% 0.144 255.1);

Tailwind

colors: {
  custom: {
    50: '#809fdb',
    500: '#3679cb',
    950: '#000000',
  },
}

SCSS

$custom: #3679cb;
$custom-light: #809fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3679cb",
  "rgb": {
    "r": 54,
    "g": 121,
    "b": 203
  },
  "hsl": {
    "h": 213.02,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.57409,
    "c": 0.14367,
    "h": 255.1
  },
  "luminance": 0.18771
}

Semantic roles & 50–950 ramp

primary

#3679CB

secondary

#D0B28D

accent

#9C46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3679CB

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

Preview Lab → · Contrast checker → · Palette generator →