#3399BD#3399BD

#3399BD is a light, moderate cyan. Relative luminance 0.272; OKLCH L 64.0% C 0.105 H 225.9°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3399BD
RGB	rgb(51, 153, 189)
HSL	hsl(196, 58%, 47%)
HSV	hsv(196, 73%, 74%)
CMYK	cmyk(73%, 19%, 0%, 25.9%)
CIE-LAB	lab(59.12, -17.09, -27.03)
CIE-LCH	lch(59.12, 31.98, 237.70°)
OKLab	oklab(64.05% -0.0734 -0.0757)
OKLCH	oklch(64.05% 0.105 225.9)
XYZ	xyz(21.9380, 27.1578, 52.2200)
Luminance	0.2716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3399BD #BD5733

analogous

#33BD9C #3399BD #3354BD

triadic

#3399BD #BD3399 #99BD33

tetradic

#3399BD #9C33BD #BD5733 #54BD33

square

#3399BD #9C33BD #BD5733 #54BD33

split-complementary

#3399BD #BD3354 #BD9C33

monochromatic

#194B5D #26728D #3399BD #5BB3D3 #8BC9E0

Accessibility & contrast

On white

3.26

#3399BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#3399BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3399BD

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3399BD	#FFFFFF	#000000	##000000
##3399BD	1.00	3.26	6.43	6.43
#FFFFFF	3.26	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)

#8596BF

Deuteranopia (green-blind)

#7388BD

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3399bd;
/* rgb */ color: rgb(51, 153, 189);
/* oklch */ color: oklch(64.0% 0.105 225.9);

Tailwind

colors: {
  custom: {
    50: '#7eb7d1',
    500: '#3399bd',
    950: '#000000',
  },
}

SCSS

$custom: #3399bd;
$custom-light: #7eb7d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3399bd",
  "rgb": {
    "r": 51,
    "g": 153,
    "b": 189
  },
  "hsl": {
    "h": 195.652,
    "s": 57.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.64046,
    "c": 0.10547,
    "h": 225.9
  },
  "luminance": 0.2716
}

Semantic roles & 50–950 ramp

primary

#3399BD

secondary

#CA9582

accent

#6F47E1

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #3399BD

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

Preview Lab → · Contrast checker → · Palette generator →