#3679B9#3679B9

#3679B9 is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.120 H 249.9°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3679B9
RGB	rgb(54, 121, 185)
HSL	hsl(209, 55%, 47%)
HSV	hsv(209, 71%, 73%)
CMYK	cmyk(70.8%, 34.6%, 0%, 27.5%)
CIE-LAB	lab(49.45, 0.23, -39.85)
CIE-LCH	lch(49.45, 39.85, 270.33°)
OKLab	oklab(56.34% -0.0413 -0.1131)
OKLCH	oklch(56.34% 0.12 249.9)
XYZ	xyz(17.1124, 17.9599, 48.4543)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3679B9 #B97636

analogous

#36B9B8 #3679B9 #3637B9

triadic

#3679B9 #B93679 #79B936

tetradic

#3679B9 #B836B9 #B97636 #37B936

square

#3679B9 #B836B9 #B97636 #37B936

split-complementary

#3679B9 #B93637 #B9B836

monochromatic

#1A3B5A #285A8A #3679B9 #5D97D0 #8CB6DD

Accessibility & contrast

On white

4.57

#3679B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#3679B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3679B9

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3679B9	#FFFFFF	#000000	##000000
##3679B9	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7CBC

Deuteranopia (green-blind)

#4970B8

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3679b9;
/* rgb */ color: rgb(54, 121, 185);
/* oklch */ color: oklch(56.3% 0.120 249.9);

Tailwind

colors: {
  custom: {
    50: '#7d9fce',
    500: '#3679b9',
    950: '#000000',
  },
}

SCSS

$custom: #3679b9;
$custom-light: #7d9fce;
$custom-dark: #000000;

JSON

{
  "hex": "#3679b9",
  "rgb": {
    "r": 54,
    "g": 121,
    "b": 185
  },
  "hsl": {
    "h": 209.313,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56338,
    "c": 0.12045,
    "h": 249.9
  },
  "luminance": 0.17962
}

Semantic roles & 50–950 ramp

primary

#3679B9

secondary

#C8A583

accent

#924ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3679B9

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

Preview Lab → · Contrast checker → · Palette generator →