#339AB4#339AB4

#339AB4 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 63.9% C 0.099 H 218.3°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#339AB4
RGB	rgb(51, 154, 180)
HSL	hsl(192, 56%, 45%)
HSV	hsv(192, 72%, 71%)
CMYK	cmyk(71.7%, 14.4%, 0%, 29.4%)
CIE-LAB	lab(59.07, -20.58, -22.02)
CIE-LCH	lch(59.07, 30.14, 226.94°)
OKLab	oklab(63.89% -0.0779 -0.0614)
OKLCH	oklch(63.89% 0.099 218.3)
XYZ	xyz(21.1556, 27.1079, 47.2885)
Luminance	0.2711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339AB4 #B44D33

analogous

#33B48D #339AB4 #3359B4

triadic

#339AB4 #B4339A #9AB433

tetradic

#339AB4 #8D33B4 #B44D33 #59B433

square

#339AB4 #8D33B4 #B44D33 #59B433

split-complementary

#339AB4 #B43359 #B48D33

monochromatic

#184855 #257184 #339AB4 #55B6CF #85CBDC

Accessibility & contrast

On white

3.27

#339AB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#339AB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339AB4

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339AB4	#FFFFFF	#000000	##000000
##339AB4	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8996B5

Deuteranopia (green-blind)

#7889B4

Tritanopia (blue-blind)

#00A3A2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #339ab4;
/* rgb */ color: rgb(51, 154, 180);
/* oklch */ color: oklch(63.9% 0.099 218.3);

Tailwind

colors: {
  custom: {
    50: '#7cb8ca',
    500: '#339ab4',
    950: '#000000',
  },
}

SCSS

$custom: #339ab4;
$custom-light: #7cb8ca;
$custom-dark: #000000;

JSON

{
  "hex": "#339ab4",
  "rgb": {
    "r": 51,
    "g": 154,
    "b": 180
  },
  "hsl": {
    "h": 192.093,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.63893,
    "c": 0.0992,
    "h": 218.3
  },
  "luminance": 0.2711
}

Semantic roles & 50–950 ramp

primary

#339AB4

secondary

#C68C7D

accent

#6749DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339AB4

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

Preview Lab → · Contrast checker → · Palette generator →