#339BC9#339BC9

#339BC9 is a light, moderate cyan. Relative luminance 0.284; OKLCH L 65.1% C 0.115 H 231.8°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#339BC9
RGB	rgb(51, 155, 201)
HSL	hsl(198, 60%, 49%)
HSV	hsv(198, 75%, 79%)
CMYK	cmyk(74.6%, 22.9%, 0%, 21.2%)
CIE-LAB	lab(60.21, -14.13, -32.09)
CIE-LCH	lch(60.21, 35.06, 246.23°)
OKLab	oklab(65.08% -0.071 -0.0903)
OKLCH	oklch(65.08% 0.115 231.8)
XYZ	xyz(23.6250, 28.3608, 59.4761)
Luminance	0.2836 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339BC9 #C96133

analogous

#33C9AC #339BC9 #3350C9

triadic

#339BC9 #C9339B #9BC933

tetradic

#339BC9 #AC33C9 #C96133 #50C933

square

#339BC9 #AC33C9 #C96133 #50C933

split-complementary

#339BC9 #C93350 #C9AC33

monochromatic

#1A5067 #277598 #339BC9 #62B3D7 #93CBE4

Accessibility & contrast

On white

3.15

#339BC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#339BC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339BC9

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339BC9	#FFFFFF	#000000	##000000
##339BC9	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8499CB

Deuteranopia (green-blind)

#708BC8

Tritanopia (blue-blind)

#00A7AA

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #339bc9;
/* rgb */ color: rgb(51, 155, 201);
/* oklch */ color: oklch(65.1% 0.115 231.8);

Tailwind

colors: {
  custom: {
    50: '#7fb8d9',
    500: '#339bc9',
    950: '#000000',
  },
}

SCSS

$custom: #339bc9;
$custom-light: #7fb8d9;
$custom-dark: #000000;

JSON

{
  "hex": "#339bc9",
  "rgb": {
    "r": 51,
    "g": 155,
    "b": 201
  },
  "hsl": {
    "h": 198.4,
    "s": 59.524,
    "l": 49.412
  },
  "oklch": {
    "l": 0.65083,
    "c": 0.11483,
    "h": 231.8
  },
  "luminance": 0.28364
}

Semantic roles & 50–950 ramp

primary

#339BC9

secondary

#CF9F89

accent

#7545E3

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #339BC9

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

Preview Lab → · Contrast checker → · Palette generator →