#3366BE#3366BE

#3366BE is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.3% C 0.149 H 260.5°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#3366BE
RGB	rgb(51, 102, 190)
HSL	hsl(218, 58%, 47%)
HSV	hsv(218, 73%, 75%)
CMYK	cmyk(73.2%, 46.3%, 0%, 25.5%)
CIE-LAB	lab(44.12, 13.48, -51.24)
CIE-LCH	lch(44.12, 52.98, 284.74°)
OKLab	oklab(52.26% -0.0246 -0.1469)
OKLCH	oklch(52.26% 0.149 260.5)
XYZ	xyz(15.4075, 13.9226, 50.5805)
Luminance	0.1392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3366BE #BE8B33

analogous

#33ABBE #3366BE #4633BE

triadic

#3366BE #BE3366 #66BE33

tetradic

#3366BE #BE33AB #BE8B33 #33BE46

square

#3366BE #BE33AB #BE8B33 #33BE46

split-complementary

#3366BE #BE4633 #ABBE33

monochromatic

#19325E #264C8E #3366BE #5B87D3 #8BAAE0

Accessibility & contrast

On white

5.55

#3366BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3366BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3366BE

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3366BE	#FFFFFF	#000000	##FFFFFF
##3366BE	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386FC1

Deuteranopia (green-blind)

#1862BC

Tritanopia (blue-blind)

#007B89

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3366be;
/* rgb */ color: rgb(51, 102, 190);
/* oklch */ color: oklch(52.3% 0.149 260.5);

Tailwind

colors: {
  custom: {
    50: '#7d91d2',
    500: '#3366be',
    950: '#000000',
  },
}

SCSS

$custom: #3366be;
$custom-light: #7d91d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3366be",
  "rgb": {
    "r": 51,
    "g": 102,
    "b": 190
  },
  "hsl": {
    "h": 217.986,
    "s": 57.676,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5226,
    "c": 0.14892,
    "h": 260.5
  },
  "luminance": 0.13924
}

Semantic roles & 50–950 ramp

primary

#3366BE

secondary

#CAB083

accent

#A847E1

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3366BE

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

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