#3363BB#3363BB

#3363BB is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.4% C 0.148 H 261.3°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3363BB
RGB	rgb(51, 99, 187)
HSL	hsl(219, 57%, 47%)
HSV	hsv(219, 73%, 73%)
CMYK	cmyk(72.7%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(43.08, 14.29, -51.16)
CIE-LCH	lch(43.08, 53.12, 285.60°)
OKLab	oklab(51.4% -0.0224 -0.1467)
OKLCH	oklch(51.4% 0.148 261.3)
XYZ	xyz(14.7935, 13.2137, 48.7749)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3363BB #BB8B33

analogous

#33A7BB #3363BB #4733BB

triadic

#3363BB #BB3363 #63BB33

tetradic

#3363BB #BB33A7 #BB8B33 #33BB47

square

#3363BB #BB33A7 #BB8B33 #33BB47

split-complementary

#3363BB #BB4733 #A7BB33

monochromatic

#19305B #264A8B #3363BB #5984D2 #89A8DF

Accessibility & contrast

On white

5.76

#3363BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#3363BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3363BB

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3363BB	#FFFFFF	#000000	##FFFFFF
##3363BB	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346CBE

Deuteranopia (green-blind)

#1260B9

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3363bb;
/* rgb */ color: rgb(51, 99, 187);
/* oklch */ color: oklch(51.4% 0.148 261.3);

Tailwind

colors: {
  custom: {
    50: '#7c8ed0',
    500: '#3363bb',
    950: '#000000',
  },
}

SCSS

$custom: #3363bb;
$custom-light: #7c8ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3363bb",
  "rgb": {
    "r": 51,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 218.824,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.51401,
    "c": 0.14841,
    "h": 261.3
  },
  "luminance": 0.13215
}

Semantic roles & 50–950 ramp

primary

#3363BB

secondary

#C9B081

accent

#AA47E0

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3363BB

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

Preview Lab → · Contrast checker → · Palette generator →