#3399D0#3399D0

#3399D0 is a light, vivid cyan. Relative luminance 0.280; OKLCH L 65.0% C 0.123 H 237.1°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3399D0
RGB	rgb(51, 153, 208)
HSL	hsl(201, 63%, 51%)
HSV	hsv(201, 75%, 82%)
CMYK	cmyk(75.5%, 26.4%, 0%, 18.4%)
CIE-LAB	lab(59.92, -10.62, -36.46)
CIE-LCH	lch(59.92, 37.98, 253.76°)
OKLab	oklab(64.95% -0.0667 -0.1029)
OKLCH	oklch(64.95% 0.123 237.1)
XYZ	xyz(24.1371, 28.0375, 63.8019)
Luminance	0.2804 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3399D0 #D06A33

analogous

#33D0B8 #3399D0 #334AD0

triadic

#3399D0 #D03399 #99D033

tetradic

#3399D0 #B833D0 #D06A33 #4AD033

square

#3399D0 #B833D0 #D06A33 #4AD033

split-complementary

#3399D0 #D0334A #D0B833

monochromatic

#1A516F #2575A1 #3399D0 #65B2DB #96CBE7

Accessibility & contrast

On white

3.18

#3399D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#3399D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3399D0

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3399D0	#FFFFFF	#000000	##000000
##3399D0	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F99D3

Deuteranopia (green-blind)

#698ACF

Tritanopia (blue-blind)

#00A7AC

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #3399d0;
/* rgb */ color: rgb(51, 153, 208);
/* oklch */ color: oklch(65.0% 0.123 237.1);

Tailwind

colors: {
  custom: {
    50: '#80b7de',
    500: '#3399d0',
    950: '#000000',
  },
}

SCSS

$custom: #3399d0;
$custom-light: #80b7de;
$custom-dark: #000000;

JSON

{
  "hex": "#3399d0",
  "rgb": {
    "r": 51,
    "g": 153,
    "b": 208
  },
  "hsl": {
    "h": 201.019,
    "s": 62.55,
    "l": 50.784
  },
  "oklch": {
    "l": 0.64951,
    "c": 0.12262,
    "h": 237.1
  },
  "luminance": 0.2804
}

Semantic roles & 50–950 ramp

primary

#3399D0

secondary

#D2A58D

accent

#7B42E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3399D0

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

Preview Lab → · Contrast checker → · Palette generator →