#3653BB#3653BB

#3653BB is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.2% C 0.167 H 267.8°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3653BB
RGB	rgb(54, 83, 187)
HSL	hsl(227, 55%, 47%)
HSV	hsv(227, 71%, 73%)
CMYK	cmyk(71.1%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(38.82, 25.08, -58.03)
CIE-LCH	lch(38.82, 63.22, 293.38°)
OKLab	oklab(48.2% -0.0064 -0.1671)
OKLCH	oklch(48.2% 0.167 267.8)
XYZ	xyz(13.5811, 10.5573, 48.3261)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3653BB #BB9E36

analogous

#3696BB #3653BB #5B36BB

triadic

#3653BB #BB3653 #53BB36

tetradic

#3653BB #BB3696 #BB9E36 #36BB5B

square

#3653BB #BB3696 #BB9E36 #36BB5B

split-complementary

#3653BB #BB5B36 #96BB36

monochromatic

#1B295C #283E8C #3653BB #5E77D0 #8D9FDE

Accessibility & contrast

On white

6.75

#3653BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3653BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3653BB

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3653BB	#FFFFFF	#000000	##FFFFFF
##3653BB	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3653bb;
/* rgb */ color: rgb(54, 83, 187);
/* oklch */ color: oklch(48.2% 0.167 267.8);

Tailwind

colors: {
  custom: {
    50: '#7e83d0',
    500: '#3653bb',
    950: '#000000',
  },
}

SCSS

$custom: #3653bb;
$custom-light: #7e83d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3653bb",
  "rgb": {
    "r": 54,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 226.917,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48199,
    "c": 0.16726,
    "h": 267.8
  },
  "luminance": 0.10559
}

Semantic roles & 50–950 ramp

primary

#3653BB

secondary

#C9BA84

accent

#BE49DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3653BB

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

Preview Lab → · Contrast checker → · Palette generator →