#3365BB#3365BB

#3365BB is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.8% C 0.146 H 260.5°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3365BB
RGB	rgb(51, 101, 187)
HSL	hsl(218, 57%, 47%)
HSV	hsv(218, 73%, 73%)
CMYK	cmyk(72.7%, 46%, 0%, 26.7%)
CIE-LAB	lab(43.65, 13.00, -50.25)
CIE-LCH	lch(43.65, 51.91, 284.51°)
OKLab	oklab(51.84% -0.0242 -0.144)
OKLCH	oklch(51.84% 0.146 260.5)
XYZ	xyz(14.9853, 13.5974, 48.8389)
Luminance	0.1360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3365BB #BB8933

analogous

#33A9BB #3365BB #4533BB

triadic

#3365BB #BB3365 #65BB33

tetradic

#3365BB #BB33A9 #BB8933 #33BB45

square

#3365BB #BB33A9 #BB8933 #33BB45

split-complementary

#3365BB #BB4533 #A9BB33

monochromatic

#19315B #264B8B #3365BB #5986D2 #89A9DF

Accessibility & contrast

On white

5.65

#3365BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3365BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3365BB

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3365BB	#FFFFFF	#000000	##FFFFFF
##3365BB	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBE

Deuteranopia (green-blind)

#1B61B9

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3365bb;
/* rgb */ color: rgb(51, 101, 187);
/* oklch */ color: oklch(51.8% 0.146 260.5);

Tailwind

colors: {
  custom: {
    50: '#7c90d0',
    500: '#3365bb',
    950: '#000000',
  },
}

SCSS

$custom: #3365bb;
$custom-light: #7c90d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3365bb",
  "rgb": {
    "r": 51,
    "g": 101,
    "b": 187
  },
  "hsl": {
    "h": 217.941,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.51836,
    "c": 0.14602,
    "h": 260.5
  },
  "luminance": 0.13599
}

Semantic roles & 50–950 ramp

primary

#3365BB

secondary

#C9AE81

accent

#A847E0

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3365BB

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

Preview Lab → · Contrast checker → · Palette generator →