#339DB3#339DB3

#339DB3 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.6% C 0.099 H 214.6°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#339DB3
RGB	rgb(51, 157, 179)
HSL	hsl(190, 56%, 45%)
HSV	hsv(190, 72%, 70%)
CMYK	cmyk(71.5%, 12.3%, 0%, 29.8%)
CIE-LAB	lab(59.95, -22.47, -20.11)
CIE-LCH	lch(59.95, 30.15, 221.84°)
OKLab	oklab(64.59% -0.0813 -0.056)
OKLCH	oklch(64.59% 0.099 214.6)
XYZ	xyz(21.5555, 28.0699, 46.9211)
Luminance	0.2807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339DB3 #B34933

analogous

#33B389 #339DB3 #335DB3

triadic

#339DB3 #B3339D #9DB333

tetradic

#339DB3 #8933B3 #B34933 #5DB333

square

#339DB3 #8933B3 #B34933 #5DB333

split-complementary

#339DB3 #B3335D #B38933

monochromatic

#184954 #257383 #339DB3 #55BACE #84CDDC

Accessibility & contrast

On white

3.17

#339DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#339DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339DB3

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339DB3	#FFFFFF	#000000	##000000
##339DB3	1.00	3.17	6.61	6.61
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D98B4

Deuteranopia (green-blind)

#7B8BB3

Tritanopia (blue-blind)

#00A5A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #339db3;
/* rgb */ color: rgb(51, 157, 179);
/* oklch */ color: oklch(64.6% 0.099 214.6);

Tailwind

colors: {
  custom: {
    50: '#7dbac9',
    500: '#339db3',
    950: '#000000',
  },
}

SCSS

$custom: #339db3;
$custom-light: #7dbac9;
$custom-dark: #000000;

JSON

{
  "hex": "#339db3",
  "rgb": {
    "r": 51,
    "g": 157,
    "b": 179
  },
  "hsl": {
    "h": 190.313,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.64587,
    "c": 0.09877,
    "h": 214.6
  },
  "luminance": 0.28072
}

Semantic roles & 50–950 ramp

primary

#339DB3

secondary

#C6897C

accent

#6349DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339DB3

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

Preview Lab → · Contrast checker → · Palette generator →