#3699BB#3699BB

#3699BB is a light, moderate cyan. Relative luminance 0.272; OKLCH L 64.0% C 0.103 H 224.9°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3699BB
RGB	rgb(54, 153, 187)
HSL	hsl(195, 55%, 47%)
HSV	hsv(195, 71%, 73%)
CMYK	cmyk(71.1%, 18.2%, 0%, 26.7%)
CIE-LAB	lab(59.11, -17.34, -25.91)
CIE-LCH	lch(59.11, 31.18, 236.20°)
OKLab	oklab(64.04% -0.0727 -0.0725)
OKLCH	oklch(64.04% 0.103 224.9)
XYZ	xyz(21.8785, 27.1521, 51.0919)
Luminance	0.2716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3699BB #BB5836

analogous

#36BB9A #3699BB #3657BB

triadic

#3699BB #BB3699 #99BB36

tetradic

#3699BB #9A36BB #BB5836 #57BB36

square

#3699BB #9A36BB #BB5836 #57BB36

split-complementary

#3699BB #BB3657 #BB9A36

monochromatic

#1B4B5C #28728C #3699BB #5EB3D0 #8DC9DE

Accessibility & contrast

On white

3.27

#3699BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#3699BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3699BB

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3699BB	#FFFFFF	#000000	##000000
##3699BB	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8696BD

Deuteranopia (green-blind)

#7488BB

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3699bb;
/* rgb */ color: rgb(54, 153, 187);
/* oklch */ color: oklch(64.0% 0.103 224.9);

Tailwind

colors: {
  custom: {
    50: '#7eb7cf',
    500: '#3699bb',
    950: '#000000',
  },
}

SCSS

$custom: #3699bb;
$custom-light: #7eb7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3699bb",
  "rgb": {
    "r": 54,
    "g": 153,
    "b": 187
  },
  "hsl": {
    "h": 195.338,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.64037,
    "c": 0.10266,
    "h": 224.9
  },
  "luminance": 0.27155
}

Semantic roles & 50–950 ramp

primary

#3699BB

secondary

#C99684

accent

#6F49DF

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3699BB

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

Preview Lab → · Contrast checker → · Palette generator →