#3365B5#3365B5

#3365B5 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.4% C 0.138 H 259.4°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3365B5
RGB	rgb(51, 101, 181)
HSL	hsl(217, 56%, 45%)
HSV	hsv(217, 72%, 71%)
CMYK	cmyk(71.8%, 44.2%, 0%, 29%)
CIE-LAB	lab(43.28, 10.76, -47.35)
CIE-LCH	lch(43.28, 48.56, 282.81°)
OKLab	oklab(51.43% -0.0253 -0.1355)
OKLCH	oklch(51.43% 0.138 259.4)
XYZ	xyz(14.3564, 13.3458, 45.5265)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3365B5 #B58333

analogous

#33A6B5 #3365B5 #4233B5

triadic

#3365B5 #B53365 #65B533

tetradic

#3365B5 #B533A6 #B58333 #33B542

square

#3365B5 #B533A6 #B58333 #33B542

split-complementary

#3365B5 #B54233 #A6B533

monochromatic

#183056 #264A85 #3365B5 #5685CF #86A7DD

Accessibility & contrast

On white

5.72

#3365B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3365B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3365B5

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3365B5	#FFFFFF	#000000	##FFFFFF
##3365B5	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6DB8

Deuteranopia (green-blind)

#2561B3

Tritanopia (blue-blind)

#007884

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3365b5;
/* rgb */ color: rgb(51, 101, 181);
/* oklch */ color: oklch(51.4% 0.138 259.4);

Tailwind

colors: {
  custom: {
    50: '#7b90cc',
    500: '#3365b5',
    950: '#000000',
  },
}

SCSS

$custom: #3365b5;
$custom-light: #7b90cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3365b5",
  "rgb": {
    "r": 51,
    "g": 101,
    "b": 181
  },
  "hsl": {
    "h": 216.923,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51431,
    "c": 0.1378,
    "h": 259.4
  },
  "luminance": 0.13347
}

Semantic roles & 50–950 ramp

primary

#3365B5

secondary

#C6AA7D

accent

#A548DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3365B5

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

Preview Lab → · Contrast checker → · Palette generator →