#3399B7#3399B7

#3399B7 is a light, moderate cyan. Relative luminance 0.269; OKLCH L 63.8% C 0.101 H 221.6°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#3399B7
RGB	rgb(51, 153, 183)
HSL	hsl(194, 56%, 46%)
HSV	hsv(194, 72%, 72%)
CMYK	cmyk(72.1%, 16.4%, 0%, 28.2%)
CIE-LAB	lab(58.88, -19.07, -24.01)
CIE-LCH	lch(58.88, 30.66, 231.54°)
OKLab	oklab(63.78% -0.0757 -0.0671)
OKLCH	oklch(63.78% 0.101 221.6)
XYZ	xyz(21.3002, 26.9027, 48.8607)
Luminance	0.2691 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3399B7 #B75133

analogous

#33B793 #3399B7 #3357B7

triadic

#3399B7 #B73399 #99B733

tetradic

#3399B7 #9333B7 #B75133 #57B733

square

#3399B7 #9333B7 #B75133 #57B733

split-complementary

#3399B7 #B73357 #B79333

monochromatic

#184957 #267187 #3399B7 #57B5D0 #87CADE

Accessibility & contrast

On white

3.29

#3399B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#3399B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3399B7

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3399B7	#FFFFFF	#000000	##000000
##3399B7	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8795B9

Deuteranopia (green-blind)

#7588B7

Tritanopia (blue-blind)

#00A3A3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3399b7;
/* rgb */ color: rgb(51, 153, 183);
/* oklch */ color: oklch(63.8% 0.101 221.6);

Tailwind

colors: {
  custom: {
    50: '#7db7cc',
    500: '#3399b7',
    950: '#000000',
  },
}

SCSS

$custom: #3399b7;
$custom-light: #7db7cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3399b7",
  "rgb": {
    "r": 51,
    "g": 153,
    "b": 183
  },
  "hsl": {
    "h": 193.636,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.63779,
    "c": 0.10115,
    "h": 221.6
  },
  "luminance": 0.26905
}

Semantic roles & 50–950 ramp

primary

#3399B7

secondary

#C78F7F

accent

#6B48E0

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3399B7

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

Preview Lab → · Contrast checker → · Palette generator →