#339CD4#339CD4

#339CD4 is a light, vivid cyan. Relative luminance 0.292; OKLCH L 65.9% C 0.125 H 236.9°. Best body text is #000000 at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#339CD4
RGB	rgb(51, 156, 212)
HSL	hsl(201, 65%, 52%)
HSV	hsv(201, 76%, 83%)
CMYK	cmyk(75.9%, 26.4%, 0%, 16.9%)
CIE-LAB	lab(60.99, -10.91, -37.03)
CIE-LCH	lch(60.99, 38.61, 253.59°)
OKLab	oklab(65.85% -0.0682 -0.1045)
OKLCH	oklch(65.85% 0.125 236.9)
XYZ	xyz(25.1327, 29.2312, 66.5922)
Luminance	0.2923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339CD4 #D46B33

analogous

#33D4BC #339CD4 #334CD4

triadic

#339CD4 #D4339C #9CD433

tetradic

#339CD4 #BC33D4 #D46B33 #4CD433

square

#339CD4 #BC33D4 #D46B33 #4CD433

split-complementary

#339CD4 #D4334C #D4BC33

monochromatic

#185474 #2379A7 #339CD4 #66B5DF #98CDE9

Accessibility & contrast

On white

3.07

#339CD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.85

#339CD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339CD4

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339CD4	#FFFFFF	#000000	##000000
##339CD4	1.00	3.07	6.85	6.85
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.85	21.00	1.00	1.00
##000000	6.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#819CD7

Deuteranopia (green-blind)

#6B8CD3

Tritanopia (blue-blind)

#00AAAF

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #339cd4;
/* rgb */ color: rgb(51, 156, 212);
/* oklch */ color: oklch(65.9% 0.125 236.9);

Tailwind

colors: {
  custom: {
    50: '#81b9e1',
    500: '#339cd4',
    950: '#000000',
  },
}

SCSS

$custom: #339cd4;
$custom-light: #81b9e1;
$custom-dark: #000000;

JSON

{
  "hex": "#339cd4",
  "rgb": {
    "r": 51,
    "g": 156,
    "b": 212
  },
  "hsl": {
    "h": 200.87,
    "s": 65.182,
    "l": 51.569
  },
  "oklch": {
    "l": 0.65854,
    "c": 0.1248,
    "h": 236.9
  },
  "luminance": 0.29234
}

Semantic roles & 50–950 ramp

primary

#339CD4

secondary

#D5A78E

accent

#7A40E8

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #339CD4

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

Preview Lab → · Contrast checker → · Palette generator →