#3684BB#3684BB

#3684BB is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 59.0% C 0.113 H 242.9°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3684BB
RGB	rgb(54, 132, 187)
HSL	hsl(205, 55%, 47%)
HSV	hsv(205, 71%, 73%)
CMYK	cmyk(71.1%, 29.4%, 0%, 26.7%)
CIE-LAB	lab(52.81, -5.59, -35.71)
CIE-LCH	lch(52.81, 36.14, 261.11°)
OKLab	oklab(59.02% -0.0516 -0.1009)
OKLCH	oklch(59.02% 0.113 242.9)
XYZ	xyz(18.7388, 20.8726, 50.0453)
Luminance	0.2087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3684BB #BB6D36

analogous

#36BBB0 #3684BB #3641BB

triadic

#3684BB #BB3684 #84BB36

tetradic

#3684BB #B036BB #BB6D36 #41BB36

square

#3684BB #B036BB #BB6D36 #41BB36

split-complementary

#3684BB #BB3641 #BBB036

monochromatic

#1B415C #28628C #3684BB #5EA1D0 #8DBDDE

Accessibility & contrast

On white

4.06

#3684BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#3684BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3684BB

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3684BB	#FFFFFF	#000000	##000000
##3684BB	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B85BD

Deuteranopia (green-blind)

#5978BA

Tritanopia (blue-blind)

#009197

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3684bb;
/* rgb */ color: rgb(54, 132, 187);
/* oklch */ color: oklch(59.0% 0.113 242.9);

Tailwind

colors: {
  custom: {
    50: '#7da7cf',
    500: '#3684bb',
    950: '#000000',
  },
}

SCSS

$custom: #3684bb;
$custom-light: #7da7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3684bb",
  "rgb": {
    "r": 54,
    "g": 132,
    "b": 187
  },
  "hsl": {
    "h": 204.812,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.59019,
    "c": 0.11336,
    "h": 242.9
  },
  "luminance": 0.20875
}

Semantic roles & 50–950 ramp

primary

#3684BB

secondary

#C9A084

accent

#8749DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3684BB

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

Preview Lab → · Contrast checker → · Palette generator →