#3679BB#3679BB

#3679BB is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.5% C 0.123 H 250.6°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3679BB
RGB	rgb(54, 121, 187)
HSL	hsl(210, 55%, 47%)
HSV	hsv(210, 71%, 73%)
CMYK	cmyk(71.1%, 35.3%, 0%, 26.7%)
CIE-LAB	lab(49.55, 0.95, -40.84)
CIE-LCH	lch(49.55, 40.85, 271.33°)
OKLab	oklab(56.45% -0.0408 -0.116)
OKLCH	oklch(56.45% 0.123 250.6)
XYZ	xyz(17.3250, 18.0450, 49.5740)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3679BB #BB7836

analogous

#36BBBA #3679BB #3637BB

triadic

#3679BB #BB3679 #79BB36

tetradic

#3679BB #BA36BB #BB7836 #37BB36

square

#3679BB #BA36BB #BB7836 #37BB36

split-complementary

#3679BB #BB3637 #BBBA36

monochromatic

#1B3C5C #285A8C #3679BB #5E98D0 #8DB6DE

Accessibility & contrast

On white

4.56

#3679BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3679BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3679BB

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3679BB	#FFFFFF	#000000	##000000
##3679BB	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7DBE

Deuteranopia (green-blind)

#4870BA

Tritanopia (blue-blind)

#008991

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3679bb;
/* rgb */ color: rgb(54, 121, 187);
/* oklch */ color: oklch(56.5% 0.123 250.6);

Tailwind

colors: {
  custom: {
    50: '#7d9fd0',
    500: '#3679bb',
    950: '#000000',
  },
}

SCSS

$custom: #3679bb;
$custom-light: #7d9fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3679bb",
  "rgb": {
    "r": 54,
    "g": 121,
    "b": 187
  },
  "hsl": {
    "h": 209.774,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.56452,
    "c": 0.12299,
    "h": 250.6
  },
  "luminance": 0.18047
}

Semantic roles & 50–950 ramp

primary

#3679BB

secondary

#C9A684

accent

#9349DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3679BB

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

Preview Lab → · Contrast checker → · Palette generator →