#339DB5#339DB5

#339DB5 is a light, moderate cyan. Relative luminance 0.282; OKLCH L 64.7% C 0.100 H 216.2°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#339DB5
RGB	rgb(51, 157, 181)
HSL	hsl(191, 56%, 45%)
HSV	hsv(191, 72%, 71%)
CMYK	cmyk(71.8%, 13.3%, 0%, 29%)
CIE-LAB	lab(60.03, -21.82, -21.13)
CIE-LCH	lch(60.03, 30.38, 224.07°)
OKLab	oklab(64.67% -0.0805 -0.0589)
OKLCH	oklch(64.67% 0.1 216.2)
XYZ	xyz(21.7592, 28.1514, 47.9941)
Luminance	0.2815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339DB5 #B54B33

analogous

#33B58C #339DB5 #335CB5

triadic

#339DB5 #B5339D #9DB533

tetradic

#339DB5 #8C33B5 #B54B33 #5CB533

square

#339DB5 #8C33B5 #B54B33 #5CB533

split-complementary

#339DB5 #B5335C #B58C33

monochromatic

#184A56 #267485 #339DB5 #56B9CF #86CDDD

Accessibility & contrast

On white

3.17

#339DB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#339DB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339DB5

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339DB5	#FFFFFF	#000000	##000000
##339DB5	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)

#8D98B6

Deuteranopia (green-blind)

#7B8BB5

Tritanopia (blue-blind)

#00A6A4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #339db5;
/* rgb */ color: rgb(51, 157, 181);
/* oklch */ color: oklch(64.7% 0.100 216.2);

Tailwind

colors: {
  custom: {
    50: '#7dbacb',
    500: '#339db5',
    950: '#000000',
  },
}

SCSS

$custom: #339db5;
$custom-light: #7dbacb;
$custom-dark: #000000;

JSON

{
  "hex": "#339db5",
  "rgb": {
    "r": 51,
    "g": 157,
    "b": 181
  },
  "hsl": {
    "h": 191.077,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.6467,
    "c": 0.09977,
    "h": 216.2
  },
  "luminance": 0.28154
}

Semantic roles & 50–950 ramp

primary

#339DB5

secondary

#C68B7D

accent

#6448DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339DB5

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

Preview Lab → · Contrast checker → · Palette generator →