#339BB9#339BB9

#339BB9 is a light, moderate cyan. Relative luminance 0.276; OKLCH L 64.4% C 0.102 H 221.2°. Best body text is #000000 at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#339BB9
RGB	rgb(51, 155, 185)
HSL	hsl(193, 57%, 46%)
HSV	hsv(193, 72%, 73%)
CMYK	cmyk(72.4%, 16.2%, 0%, 27.5%)
CIE-LAB	lab(59.57, -19.48, -24.09)
CIE-LCH	lch(59.57, 30.98, 231.04°)
OKLab	oklab(64.35% -0.0769 -0.0673)
OKLCH	oklch(64.35% 0.102 221.2)
XYZ	xyz(21.8399, 27.6467, 50.0749)
Luminance	0.2765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339BB9 #B95133

analogous

#33B994 #339BB9 #3358B9

triadic

#339BB9 #B9339B #9BB933

tetradic

#339BB9 #9433B9 #B95133 #58B933

square

#339BB9 #9433B9 #B95133 #58B933

split-complementary

#339BB9 #B93358 #B99433

monochromatic

#194B59 #267389 #339BB9 #58B6D1 #88CBDE

Accessibility & contrast

On white

3.22

#339BB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.53

#339BB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339BB9

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339BB9	#FFFFFF	#000000	##000000
##339BB9	1.00	3.22	6.53	6.53
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.53	21.00	1.00	1.00
##000000	6.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8997BB

Deuteranopia (green-blind)

#778AB9

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #339bb9;
/* rgb */ color: rgb(51, 155, 185);
/* oklch */ color: oklch(64.4% 0.102 221.2);

Tailwind

colors: {
  custom: {
    50: '#7db8ce',
    500: '#339bb9',
    950: '#000000',
  },
}

SCSS

$custom: #339bb9;
$custom-light: #7db8ce;
$custom-dark: #000000;

JSON

{
  "hex": "#339bb9",
  "rgb": {
    "r": 51,
    "g": 155,
    "b": 185
  },
  "hsl": {
    "h": 193.433,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.64353,
    "c": 0.10222,
    "h": 221.2
  },
  "luminance": 0.27649
}

Semantic roles & 50–950 ramp

primary

#339BB9

secondary

#C89080

accent

#6A48E0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339BB9

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

Preview Lab → · Contrast checker → · Palette generator →