#339CB5#339CB5

#339CB5 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.4% C 0.100 H 217.1°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#339CB5
RGB	rgb(51, 156, 181)
HSL	hsl(192, 56%, 45%)
HSV	hsv(192, 72%, 71%)
CMYK	cmyk(71.8%, 13.8%, 0%, 29%)
CIE-LAB	lab(59.72, -21.30, -21.60)
CIE-LCH	lch(59.72, 30.34, 225.39°)
OKLab	oklab(64.43% -0.0795 -0.0602)
OKLCH	oklch(64.43% 0.1 217.1)
XYZ	xyz(21.5907, 27.8144, 47.9379)
Luminance	0.2782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339CB5 #B54C33

analogous

#33B58D #339CB5 #335BB5

triadic

#339CB5 #B5339C #9CB533

tetradic

#339CB5 #8D33B5 #B54C33 #5BB533

square

#339CB5 #8D33B5 #B54C33 #5BB533

split-complementary

#339CB5 #B5335B #B58D33

monochromatic

#184A56 #267385 #339CB5 #56B8CF #86CCDD

Accessibility & contrast

On white

3.20

#339CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#339CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339CB5

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339CB5	#FFFFFF	#000000	##000000
##339CB5	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C97B6

Deuteranopia (green-blind)

#7A8AB5

Tritanopia (blue-blind)

#00A5A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #339cb5;
/* rgb */ color: rgb(51, 156, 181);
/* oklch */ color: oklch(64.4% 0.100 217.1);

Tailwind

colors: {
  custom: {
    50: '#7db9cb',
    500: '#339cb5',
    950: '#000000',
  },
}

SCSS

$custom: #339cb5;
$custom-light: #7db9cb;
$custom-dark: #000000;

JSON

{
  "hex": "#339cb5",
  "rgb": {
    "r": 51,
    "g": 156,
    "b": 181
  },
  "hsl": {
    "h": 191.538,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.64426,
    "c": 0.09975,
    "h": 217.1
  },
  "luminance": 0.27817
}

Semantic roles & 50–950 ramp

primary

#339CB5

secondary

#C68B7D

accent

#6548DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339CB5

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

Preview Lab → · Contrast checker → · Palette generator →