#3399BA#3399BA

#3399BA is a light, moderate cyan. Relative luminance 0.270; OKLCH L 63.9% C 0.103 H 223.8°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#3399BA
RGB	rgb(51, 153, 186)
HSL	hsl(195, 57%, 46%)
HSV	hsv(195, 73%, 73%)
CMYK	cmyk(72.6%, 17.7%, 0%, 27.1%)
CIE-LAB	lab(59.00, -18.08, -25.52)
CIE-LCH	lch(59.00, 31.28, 234.68°)
OKLab	oklab(63.91% -0.0745 -0.0714)
OKLCH	oklch(63.91% 0.103 223.8)
XYZ	xyz(21.6158, 27.0289, 50.5227)
Luminance	0.2703 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3399BA #BA5433

analogous

#33BA98 #3399BA #3356BA

triadic

#3399BA #BA3399 #99BA33

tetradic

#3399BA #9833BA #BA5433 #56BA33

square

#3399BA #9833BA #BA5433 #56BA33

split-complementary

#3399BA #BA3356 #BA9833

monochromatic

#194A5A #26718A #3399BA #59B4D1 #89CADF

Accessibility & contrast

On white

3.28

#3399BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#3399BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3399BA

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3399BA	#FFFFFF	#000000	##000000
##3399BA	1.00	3.28	6.41	6.41
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8696BC

Deuteranopia (green-blind)

#7488BA

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3399ba;
/* rgb */ color: rgb(51, 153, 186);
/* oklch */ color: oklch(63.9% 0.103 223.8);

Tailwind

colors: {
  custom: {
    50: '#7db7ce',
    500: '#3399ba',
    950: '#000000',
  },
}

SCSS

$custom: #3399ba;
$custom-light: #7db7ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3399ba",
  "rgb": {
    "r": 51,
    "g": 153,
    "b": 186
  },
  "hsl": {
    "h": 194.667,
    "s": 56.962,
    "l": 46.471
  },
  "oklch": {
    "l": 0.63911,
    "c": 0.10323,
    "h": 223.8
  },
  "luminance": 0.27031
}

Semantic roles & 50–950 ramp

primary

#3399BA

secondary

#C99280

accent

#6D48E0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3399BA

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

Preview Lab → · Contrast checker → · Palette generator →