#3365B2#3365B2

#3365B2 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.2% C 0.134 H 258.8°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3365B2
RGB	rgb(51, 101, 178)
HSL	hsl(216, 55%, 45%)
HSV	hsv(216, 71%, 70%)
CMYK	cmyk(71.3%, 43.3%, 0%, 30.2%)
CIE-LAB	lab(43.10, 9.65, -45.88)
CIE-LCH	lch(43.10, 46.89, 281.87°)
OKLab	oklab(51.23% -0.0259 -0.1311)
OKLCH	oklch(51.23% 0.134 258.8)
XYZ	xyz(14.0519, 13.2240, 43.9228)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3365B2 #B28033

analogous

#33A5B2 #3365B2 #4033B2

triadic

#3365B2 #B23365 #65B233

tetradic

#3365B2 #B233A5 #B28033 #33B240

square

#3365B2 #B233A5 #B28033 #33B240

split-complementary

#3365B2 #B24033 #A5B233

monochromatic

#182F53 #254A82 #3365B2 #5484CE #84A6DC

Accessibility & contrast

On white

5.76

#3365B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3365B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3365B2

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3365B2	#FFFFFF	#000000	##FFFFFF
##3365B2	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406CB5

Deuteranopia (green-blind)

#2A60B0

Tritanopia (blue-blind)

#007783

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3365b2;
/* rgb */ color: rgb(51, 101, 178);
/* oklch */ color: oklch(51.2% 0.134 258.8);

Tailwind

colors: {
  custom: {
    50: '#7a90c9',
    500: '#3365b2',
    950: '#000000',
  },
}

SCSS

$custom: #3365b2;
$custom-light: #7a90c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3365b2",
  "rgb": {
    "r": 51,
    "g": 101,
    "b": 178
  },
  "hsl": {
    "h": 216.378,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51233,
    "c": 0.13368,
    "h": 258.8
  },
  "luminance": 0.13226
}

Semantic roles & 50–950 ramp

primary

#3365B2

secondary

#C5A87C

accent

#A449DF

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3365B2

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

Preview Lab → · Contrast checker → · Palette generator →