#339BB2#339BB2

#339BB2 is a light, moderate cyan. Relative luminance 0.274; OKLCH L 64.1% C 0.098 H 215.7°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#339BB2
RGB	rgb(51, 155, 178)
HSL	hsl(191, 55%, 45%)
HSV	hsv(191, 71%, 70%)
CMYK	cmyk(71.3%, 12.9%, 0%, 30.2%)
CIE-LAB	lab(59.30, -21.75, -20.54)
CIE-LCH	lch(59.30, 29.91, 223.36°)
OKLab	oklab(64.05% -0.0797 -0.0572)
OKLCH	oklch(64.05% 0.098 215.7)
XYZ	xyz(21.1191, 27.3584, 46.2785)
Luminance	0.2736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339BB2 #B24A33

analogous

#33B28A #339BB2 #335CB2

triadic

#339BB2 #B2339B #9BB233

tetradic

#339BB2 #8A33B2 #B24A33 #5CB233

square

#339BB2 #8A33B2 #B24A33 #5CB233

split-complementary

#339BB2 #B2335C #B28A33

monochromatic

#184853 #257282 #339BB2 #54B8CE #84CCDC

Accessibility & contrast

On white

3.24

#339BB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#339BB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339BB2

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339BB2	#FFFFFF	#000000	##000000
##339BB2	1.00	3.24	6.47	6.47
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B96B3

Deuteranopia (green-blind)

#7989B2

Tritanopia (blue-blind)

#00A3A2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #339bb2;
/* rgb */ color: rgb(51, 155, 178);
/* oklch */ color: oklch(64.1% 0.098 215.7);

Tailwind

colors: {
  custom: {
    50: '#7cb8c9',
    500: '#339bb2',
    950: '#000000',
  },
}

SCSS

$custom: #339bb2;
$custom-light: #7cb8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#339bb2",
  "rgb": {
    "r": 51,
    "g": 155,
    "b": 178
  },
  "hsl": {
    "h": 190.866,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.64054,
    "c": 0.09813,
    "h": 215.7
  },
  "luminance": 0.27361
}

Semantic roles & 50–950 ramp

primary

#339BB2

secondary

#C5897C

accent

#6449DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339BB2

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

Preview Lab → · Contrast checker → · Palette generator →