#339BBB#339BBB

#339BBB is a light, moderate cyan. Relative luminance 0.277; OKLCH L 64.4% C 0.104 H 222.7°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#339BBB
RGB	rgb(51, 155, 187)
HSL	hsl(194, 57%, 47%)
HSV	hsv(194, 73%, 73%)
CMYK	cmyk(72.7%, 17.1%, 0%, 26.7%)
CIE-LAB	lab(59.65, -18.82, -25.10)
CIE-LCH	lch(59.65, 31.37, 233.13°)
OKLab	oklab(64.44% -0.0761 -0.0702)
OKLCH	oklch(64.44% 0.104 222.7)
XYZ	xyz(22.0525, 27.7318, 51.1946)
Luminance	0.2773 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339BBB #BB5333

analogous

#33BB97 #339BBB #3357BB

triadic

#339BBB #BB339B #9BBB33

tetradic

#339BBB #9733BB #BB5333 #57BB33

square

#339BBB #9733BB #BB5333 #57BB33

split-complementary

#339BBB #BB3357 #BB9733

monochromatic

#194B5B #26738B #339BBB #59B5D2 #89CBDF

Accessibility & contrast

On white

3.21

#339BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#339BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339BBB

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339BBB	#FFFFFF	#000000	##000000
##339BBB	1.00	3.21	6.55	6.55
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8997BD

Deuteranopia (green-blind)

#768ABB

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #339bbb;
/* rgb */ color: rgb(51, 155, 187);
/* oklch */ color: oklch(64.4% 0.104 222.7);

Tailwind

colors: {
  custom: {
    50: '#7db8cf',
    500: '#339bbb',
    950: '#000000',
  },
}

SCSS

$custom: #339bbb;
$custom-light: #7db8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#339bbb",
  "rgb": {
    "r": 51,
    "g": 155,
    "b": 187
  },
  "hsl": {
    "h": 194.118,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.64441,
    "c": 0.10357,
    "h": 222.7
  },
  "luminance": 0.27734
}

Semantic roles & 50–950 ramp

primary

#339BBB

secondary

#C99281

accent

#6B47E0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339BBB

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

Preview Lab → · Contrast checker → · Palette generator →