#339CB9#339CB9

#339CB9 is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.6% C 0.102 H 220.3°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#339CB9
RGB	rgb(51, 156, 185)
HSL	hsl(193, 57%, 46%)
HSV	hsv(193, 72%, 73%)
CMYK	cmyk(72.4%, 15.7%, 0%, 27.5%)
CIE-LAB	lab(59.87, -20.00, -23.62)
CIE-LCH	lch(59.87, 30.95, 229.74°)
OKLab	oklab(64.6% -0.0779 -0.066)
OKLCH	oklch(64.6% 0.102 220.3)
XYZ	xyz(22.0070, 27.9810, 50.1306)
Luminance	0.2798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339CB9 #B95033

analogous

#33B993 #339CB9 #3359B9

triadic

#339CB9 #B9339C #9CB933

tetradic

#339CB9 #9333B9 #B95033 #59B933

square

#339CB9 #9333B9 #B95033 #59B933

split-complementary

#339CB9 #B93359 #B99333

monochromatic

#194B59 #267489 #339CB9 #58B7D1 #88CCDE

Accessibility & contrast

On white

3.18

#339CB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#339CB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339CB9

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339CB9	#FFFFFF	#000000	##000000
##339CB9	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A98BB

Deuteranopia (green-blind)

#788AB9

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #339cb9;
/* rgb */ color: rgb(51, 156, 185);
/* oklch */ color: oklch(64.6% 0.102 220.3);

Tailwind

colors: {
  custom: {
    50: '#7db9ce',
    500: '#339cb9',
    950: '#000000',
  },
}

SCSS

$custom: #339cb9;
$custom-light: #7db9ce;
$custom-dark: #000000;

JSON

{
  "hex": "#339cb9",
  "rgb": {
    "r": 51,
    "g": 156,
    "b": 185
  },
  "hsl": {
    "h": 192.985,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.64597,
    "c": 0.10211,
    "h": 220.3
  },
  "luminance": 0.27984
}

Semantic roles & 50–950 ramp

primary

#339CB9

secondary

#C88F80

accent

#6948E0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339CB9

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

Preview Lab → · Contrast checker → · Palette generator →