#339AB3#339AB3

#339AB3 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 63.9% C 0.099 H 217.5°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#339AB3
RGB	rgb(51, 154, 179)
HSL	hsl(192, 56%, 45%)
HSV	hsv(192, 72%, 70%)
CMYK	cmyk(71.5%, 14%, 0%, 29.8%)
CIE-LAB	lab(59.04, -20.90, -21.51)
CIE-LCH	lch(59.04, 30.00, 225.82°)
OKLab	oklab(63.85% -0.0783 -0.06)
OKLCH	oklch(63.85% 0.099 217.5)
XYZ	xyz(21.0541, 27.0673, 46.7540)
Luminance	0.2707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339AB3 #B34C33

analogous

#33B38C #339AB3 #335AB3

triadic

#339AB3 #B3339A #9AB333

tetradic

#339AB3 #8C33B3 #B34C33 #5AB333

square

#339AB3 #8C33B3 #B34C33 #5AB333

split-complementary

#339AB3 #B3335A #B38C33

monochromatic

#184854 #257183 #339AB3 #55B7CE #84CBDC

Accessibility & contrast

On white

3.27

#339AB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#339AB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339AB3

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339AB3	#FFFFFF	#000000	##000000
##339AB3	1.00	3.27	6.41	6.41
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A95B4

Deuteranopia (green-blind)

#7888B3

Tritanopia (blue-blind)

#00A3A2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #339ab3;
/* rgb */ color: rgb(51, 154, 179);
/* oklch */ color: oklch(63.9% 0.099 217.5);

Tailwind

colors: {
  custom: {
    50: '#7cb8c9',
    500: '#339ab3',
    950: '#000000',
  },
}

SCSS

$custom: #339ab3;
$custom-light: #7cb8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#339ab3",
  "rgb": {
    "r": 51,
    "g": 154,
    "b": 179
  },
  "hsl": {
    "h": 191.719,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.63851,
    "c": 0.09863,
    "h": 217.5
  },
  "luminance": 0.2707
}

Semantic roles & 50–950 ramp

primary

#339AB3

secondary

#C68B7C

accent

#6649DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339AB3

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

Preview Lab → · Contrast checker → · Palette generator →