#3699BF#3699BF

#3699BF is a light, moderate cyan. Relative luminance 0.273; OKLCH L 64.2% C 0.106 H 227.7°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#3699BF
RGB	rgb(54, 153, 191)
HSL	hsl(197, 56%, 48%)
HSV	hsv(197, 72%, 75%)
CMYK	cmyk(71.7%, 19.9%, 0%, 25.1%)
CIE-LAB	lab(59.27, -16.02, -27.92)
CIE-LCH	lch(59.27, 32.18, 240.15°)
OKLab	oklab(64.22% -0.0712 -0.0783)
OKLCH	oklch(64.22% 0.106 227.7)
XYZ	xyz(22.3127, 27.3258, 53.3786)
Luminance	0.2733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3699BF #BF5C36

analogous

#36BFA0 #3699BF #3655BF

triadic

#3699BF #BF3699 #99BF36

tetradic

#3699BF #A036BF #BF5C36 #55BF36

square

#3699BF #A036BF #BF5C36 #55BF36

split-complementary

#3699BF #BF3655 #BFA036

monochromatic

#1B4D60 #29738F #3699BF #60B2D2 #90C9E0

Accessibility & contrast

On white

3.25

#3699BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#3699BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3699BF

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3699BF	#FFFFFF	#000000	##000000
##3699BF	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8596C1

Deuteranopia (green-blind)

#7289BF

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #3699bf;
/* rgb */ color: rgb(54, 153, 191);
/* oklch */ color: oklch(64.2% 0.106 227.7);

Tailwind

colors: {
  custom: {
    50: '#7fb7d2',
    500: '#3699bf',
    950: '#000000',
  },
}

SCSS

$custom: #3699bf;
$custom-light: #7fb7d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3699bf",
  "rgb": {
    "r": 54,
    "g": 153,
    "b": 191
  },
  "hsl": {
    "h": 196.642,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.64217,
    "c": 0.10579,
    "h": 227.7
  },
  "luminance": 0.27328
}

Semantic roles & 50–950 ramp

primary

#3699BF

secondary

#CA9987

accent

#7249DF

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #3699BF

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

Preview Lab → · Contrast checker → · Palette generator →