#339CB4#339CB4

#339CB4 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.4% C 0.099 H 216.3°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#339CB4
RGB	rgb(51, 156, 180)
HSL	hsl(191, 56%, 45%)
HSV	hsv(191, 72%, 71%)
CMYK	cmyk(71.7%, 13.3%, 0%, 29.4%)
CIE-LAB	lab(59.68, -21.63, -21.09)
CIE-LCH	lch(59.68, 30.21, 224.28°)
OKLab	oklab(64.38% -0.0799 -0.0588)
OKLCH	oklch(64.38% 0.099 216.3)
XYZ	xyz(21.4885, 27.7735, 47.3995)
Luminance	0.2778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339CB4 #B44B33

analogous

#33B48C #339CB4 #335BB4

triadic

#339CB4 #B4339C #9CB433

tetradic

#339CB4 #8C33B4 #B44B33 #5BB433

square

#339CB4 #8C33B4 #B44B33 #5BB433

split-complementary

#339CB4 #B4335B #B48C33

monochromatic

#184955 #257384 #339CB4 #55B8CF #85CCDC

Accessibility & contrast

On white

3.20

#339CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#339CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339CB4

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339CB4	#FFFFFF	#000000	##000000
##339CB4	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)

#8C97B5

Deuteranopia (green-blind)

#7A8AB4

Tritanopia (blue-blind)

#00A5A3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #339cb4;
/* rgb */ color: rgb(51, 156, 180);
/* oklch */ color: oklch(64.4% 0.099 216.3);

Tailwind

colors: {
  custom: {
    50: '#7db9ca',
    500: '#339cb4',
    950: '#000000',
  },
}

SCSS

$custom: #339cb4;
$custom-light: #7db9ca;
$custom-dark: #000000;

JSON

{
  "hex": "#339cb4",
  "rgb": {
    "r": 51,
    "g": 156,
    "b": 180
  },
  "hsl": {
    "h": 191.163,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.64383,
    "c": 0.09921,
    "h": 216.3
  },
  "luminance": 0.27776
}

Semantic roles & 50–950 ramp

primary

#339CB4

secondary

#C68A7D

accent

#6549DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339CB4

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

Preview Lab → · Contrast checker → · Palette generator →