#339BC4#339BC4

#339BC4 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.8% C 0.110 H 228.8°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#339BC4
RGB	rgb(51, 155, 196)
HSL	hsl(197, 59%, 48%)
HSV	hsv(197, 74%, 77%)
CMYK	cmyk(74%, 20.9%, 0%, 23.1%)
CIE-LAB	lab(60.01, -15.82, -29.60)
CIE-LCH	lch(60.01, 33.57, 241.88°)
OKLab	oklab(64.85% -0.0728 -0.0831)
OKLCH	oklch(64.85% 0.11 228.8)
XYZ	xyz(23.0463, 28.1293, 56.4287)
Luminance	0.2813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339BC4 #C45C33

analogous

#33C4A4 #339BC4 #3352C4

triadic

#339BC4 #C4339B #9BC433

tetradic

#339BC4 #A433C4 #C45C33 #52C433

square

#339BC4 #A433C4 #C45C33 #52C433

split-complementary

#339BC4 #C43352 #C4A433

monochromatic

#1A4E63 #267593 #339BC4 #5FB4D5 #8FCBE2

Accessibility & contrast

On white

3.17

#339BC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#339BC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339BC4

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339BC4	#FFFFFF	#000000	##000000
##339BC4	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8699C6

Deuteranopia (green-blind)

#728AC3

Tritanopia (blue-blind)

#00A7A9

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #339bc4;
/* rgb */ color: rgb(51, 155, 196);
/* oklch */ color: oklch(64.8% 0.110 228.8);

Tailwind

colors: {
  custom: {
    50: '#7fb8d6',
    500: '#339bc4',
    950: '#000000',
  },
}

SCSS

$custom: #339bc4;
$custom-light: #7fb8d6;
$custom-dark: #000000;

JSON

{
  "hex": "#339bc4",
  "rgb": {
    "r": 51,
    "g": 155,
    "b": 196
  },
  "hsl": {
    "h": 196.966,
    "s": 58.704,
    "l": 48.431
  },
  "oklch": {
    "l": 0.64848,
    "c": 0.11047,
    "h": 228.8
  },
  "luminance": 0.28132
}

Semantic roles & 50–950 ramp

primary

#339BC4

secondary

#CD9A86

accent

#7246E2

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0B1114

muted

#7C8083

Preview Lab

Preview with #339BC4

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

Preview Lab → · Contrast checker → · Palette generator →