#3399B2#3399B2

#3399B2 is a light, moderate cyan. Relative luminance 0.267; OKLCH L 63.6% C 0.098 H 217.6°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#3399B2
RGB	rgb(51, 153, 178)
HSL	hsl(192, 55%, 45%)
HSV	hsv(192, 71%, 70%)
CMYK	cmyk(71.3%, 14%, 0%, 30.2%)
CIE-LAB	lab(58.69, -20.70, -21.47)
CIE-LCH	lch(58.69, 29.83, 226.05°)
OKLab	oklab(63.56% -0.0777 -0.0599)
OKLCH	oklch(63.56% 0.098 217.6)
XYZ	xyz(20.7890, 26.6982, 46.1685)
Luminance	0.2670 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3399B2 #B24C33

analogous

#33B28C #3399B2 #3359B2

triadic

#3399B2 #B23399 #99B233

tetradic

#3399B2 #8C33B2 #B24C33 #59B233

square

#3399B2 #8C33B2 #B24C33 #59B233

split-complementary

#3399B2 #B23359 #B28C33

monochromatic

#184753 #257082 #3399B2 #54B6CE #84CADC

Accessibility & contrast

On white

3.31

#3399B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#3399B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3399B2

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3399B2	#FFFFFF	#000000	##000000
##3399B2	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8995B3

Deuteranopia (green-blind)

#7788B2

Tritanopia (blue-blind)

#00A2A1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #3399b2;
/* rgb */ color: rgb(51, 153, 178);
/* oklch */ color: oklch(63.6% 0.098 217.6);

Tailwind

colors: {
  custom: {
    50: '#7cb7c9',
    500: '#3399b2',
    950: '#000000',
  },
}

SCSS

$custom: #3399b2;
$custom-light: #7cb7c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3399b2",
  "rgb": {
    "r": 51,
    "g": 153,
    "b": 178
  },
  "hsl": {
    "h": 191.811,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.63563,
    "c": 0.09808,
    "h": 217.6
  },
  "luminance": 0.26701
}

Semantic roles & 50–950 ramp

primary

#3399B2

secondary

#C58A7C

accent

#6749DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3399B2

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

Preview Lab → · Contrast checker → · Palette generator →