#3366AE#3366AE

#3366AE is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.2% C 0.127 H 257.4°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#3366AE
RGB	rgb(51, 102, 174)
HSL	hsl(215, 55%, 44%)
HSV	hsv(215, 71%, 68%)
CMYK	cmyk(70.7%, 41.4%, 0%, 31.8%)
CIE-LAB	lab(43.15, 7.53, -43.45)
CIE-LCH	lch(43.15, 44.10, 279.83°)
OKLab	oklab(51.2% -0.0276 -0.124)
OKLCH	oklch(51.2% 0.127 257.4)
XYZ	xyz(13.7538, 13.2611, 41.8710)
Luminance	0.1326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3366AE #AE7B33

analogous

#33A4AE #3366AE #3E33AE

triadic

#3366AE #AE3366 #66AE33

tetradic

#3366AE #AE33A4 #AE7B33 #33AE3E

square

#3366AE #AE33A4 #AE7B33 #33AE3E

split-complementary

#3366AE #AE3E33 #A4AE33

monochromatic

#172F4F #254A7F #3366AE #5285CC #81A6DA

Accessibility & contrast

On white

5.75

#3366AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3366AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3366AE

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3366AE	#FFFFFF	#000000	##FFFFFF
##3366AE	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446CB1

Deuteranopia (green-blind)

#3061AD

Tritanopia (blue-blind)

#007781

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3366ae;
/* rgb */ color: rgb(51, 102, 174);
/* oklch */ color: oklch(51.2% 0.127 257.4);

Tailwind

colors: {
  custom: {
    50: '#7991c6',
    500: '#3366ae',
    950: '#000000',
  },
}

SCSS

$custom: #3366ae;
$custom-light: #7991c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3366ae",
  "rgb": {
    "r": 51,
    "g": 102,
    "b": 174
  },
  "hsl": {
    "h": 215.122,
    "s": 54.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51199,
    "c": 0.12704,
    "h": 257.4
  },
  "luminance": 0.13263
}

Semantic roles & 50–950 ramp

primary

#3366AE

secondary

#C3A579

accent

#A14ADE

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3366AE

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

Preview Lab → · Contrast checker → · Palette generator →