#3665C3#3665C3

#3665C3 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.5% C 0.156 H 262.4°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#3665C3
RGB	rgb(54, 101, 195)
HSL	hsl(220, 57%, 49%)
HSV	hsv(220, 72%, 76%)
CMYK	cmyk(72.3%, 48.2%, 0%, 23.5%)
CIE-LAB	lab(44.28, 16.39, -53.88)
CIE-LCH	lch(44.28, 56.32, 286.92°)
OKLab	oklab(52.51% -0.0207 -0.1546)
OKLCH	oklch(52.51% 0.156 262.4)
XYZ	xyz(16.0218, 14.0300, 53.4829)
Luminance	0.1403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3665C3 #C39436

analogous

#36ACC3 #3665C3 #4E36C3

triadic

#3665C3 #C33665 #65C336

tetradic

#3665C3 #C336AC #C39436 #36C34E

square

#3665C3 #C336AC #C39436 #36C34E

split-complementary

#3665C3 #C34E36 #ACC336

monochromatic

#1B3363 #294C93 #3665C3 #6388D4 #92ADE1

Accessibility & contrast

On white

5.52

#3665C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#3665C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3665C3

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3665C3	#FFFFFF	#000000	##FFFFFF
##3665C3	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3170C6

Deuteranopia (green-blind)

#0463C1

Tritanopia (blue-blind)

#007B8A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3665c3;
/* rgb */ color: rgb(54, 101, 195);
/* oklch */ color: oklch(52.5% 0.156 262.4);

Tailwind

colors: {
  custom: {
    50: '#7f90d6',
    500: '#3665c3',
    950: '#000000',
  },
}

SCSS

$custom: #3665c3;
$custom-light: #7f90d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3665c3",
  "rgb": {
    "r": 54,
    "g": 101,
    "b": 195
  },
  "hsl": {
    "h": 220,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.52513,
    "c": 0.15599,
    "h": 262.4
  },
  "luminance": 0.14032
}

Semantic roles & 50–950 ramp

primary

#3665C3

secondary

#CCB689

accent

#AD48E0

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3665C3

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

Preview Lab → · Contrast checker → · Palette generator →