#339BC3#339BC3

#339BC3 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.8% C 0.110 H 228.2°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#339BC3
RGB	rgb(51, 155, 195)
HSL	hsl(197, 59%, 48%)
HSV	hsv(197, 74%, 76%)
CMYK	cmyk(73.8%, 20.5%, 0%, 23.5%)
CIE-LAB	lab(59.96, -16.16, -29.11)
CIE-LCH	lch(59.96, 33.29, 240.96°)
OKLab	oklab(64.8% -0.0731 -0.0817)
OKLCH	oklch(64.8% 0.11 228.2)
XYZ	xyz(22.9329, 28.0839, 55.8313)
Luminance	0.2809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339BC3 #C35B33

analogous

#33C3A3 #339BC3 #3353C3

triadic

#339BC3 #C3339B #9BC333

tetradic

#339BC3 #A333C3 #C35B33 #53C333

square

#339BC3 #A333C3 #C35B33 #53C333

split-complementary

#339BC3 #C33353 #C3A333

monochromatic

#1A4E62 #267492 #339BC3 #5EB4D5 #8FCBE2

Accessibility & contrast

On white

3.17

#339BC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#339BC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339BC3

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339BC3	#FFFFFF	#000000	##000000
##339BC3	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8698C5

Deuteranopia (green-blind)

#738AC2

Tritanopia (blue-blind)

#00A6A8

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #339bc3;
/* rgb */ color: rgb(51, 155, 195);
/* oklch */ color: oklch(64.8% 0.110 228.2);

Tailwind

colors: {
  custom: {
    50: '#7fb8d5',
    500: '#339bc3',
    950: '#000000',
  },
}

SCSS

$custom: #339bc3;
$custom-light: #7fb8d5;
$custom-dark: #000000;

JSON

{
  "hex": "#339bc3",
  "rgb": {
    "r": 51,
    "g": 155,
    "b": 195
  },
  "hsl": {
    "h": 196.667,
    "s": 58.537,
    "l": 48.235
  },
  "oklch": {
    "l": 0.64802,
    "c": 0.10964,
    "h": 228.2
  },
  "luminance": 0.28087
}

Semantic roles & 50–950 ramp

primary

#339BC3

secondary

#CC9986

accent

#7146E2

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0B1114

muted

#7C8083

Preview Lab

Preview with #339BC3

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

Preview Lab → · Contrast checker → · Palette generator →