#339AB2#339AB2

#339AB2 is a light, moderate cyan. Relative luminance 0.270; OKLCH L 63.8% C 0.098 H 216.7°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#339AB2
RGB	rgb(51, 154, 178)
HSL	hsl(191, 55%, 45%)
HSV	hsv(191, 71%, 70%)
CMYK	cmyk(71.3%, 13.5%, 0%, 30.2%)
CIE-LAB	lab(59.00, -21.22, -21.00)
CIE-LCH	lch(59.00, 29.86, 224.70°)
OKLab	oklab(63.81% -0.0787 -0.0586)
OKLCH	oklch(63.81% 0.098 216.7)
XYZ	xyz(20.9534, 27.0269, 46.2233)
Luminance	0.2703 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339AB2 #B24B33

analogous

#33B28B #339AB2 #335AB2

triadic

#339AB2 #B2339A #9AB233

tetradic

#339AB2 #8B33B2 #B24B33 #5AB233

square

#339AB2 #8B33B2 #B24B33 #5AB233

split-complementary

#339AB2 #B2335A #B28B33

monochromatic

#184853 #257182 #339AB2 #54B7CE #84CBDC

Accessibility & contrast

On white

3.28

#339AB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#339AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339AB2

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339AB2	#FFFFFF	#000000	##000000
##339AB2	1.00	3.28	6.41	6.41
#FFFFFF	3.28	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)

#8A95B3

Deuteranopia (green-blind)

#7888B2

Tritanopia (blue-blind)

#00A3A2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #339ab2;
/* rgb */ color: rgb(51, 154, 178);
/* oklch */ color: oklch(63.8% 0.098 216.7);

Tailwind

colors: {
  custom: {
    50: '#7cb8c9',
    500: '#339ab2',
    950: '#000000',
  },
}

SCSS

$custom: #339ab2;
$custom-light: #7cb8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#339ab2",
  "rgb": {
    "r": 51,
    "g": 154,
    "b": 178
  },
  "hsl": {
    "h": 191.339,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.63809,
    "c": 0.09809,
    "h": 216.7
  },
  "luminance": 0.27029
}

Semantic roles & 50–950 ramp

primary

#339AB2

secondary

#C58A7C

accent

#6549DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339AB2

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

Preview Lab → · Contrast checker → · Palette generator →