#3665C1#3665C1

#3665C1 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.4% C 0.153 H 262.1°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#3665C1
RGB	rgb(54, 101, 193)
HSL	hsl(220, 56%, 48%)
HSV	hsv(220, 72%, 76%)
CMYK	cmyk(72%, 47.7%, 0%, 24.3%)
CIE-LAB	lab(44.15, 15.65, -52.93)
CIE-LCH	lch(44.15, 55.19, 286.47°)
OKLab	oklab(52.37% -0.0209 -0.1518)
OKLCH	oklch(52.37% 0.153 262.1)
XYZ	xyz(15.7972, 13.9402, 52.2999)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3665C1 #C19236

analogous

#36AAC1 #3665C1 #4C36C1

triadic

#3665C1 #C13665 #65C136

tetradic

#3665C1 #C136AA #C19236 #36C14C

square

#3665C1 #C136AA #C19236 #36C14C

split-complementary

#3665C1 #C14C36 #AAC136

monochromatic

#1B3361 #294C91 #3665C1 #6188D3 #91ACE0

Accessibility & contrast

On white

5.54

#3665C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#3665C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3665C1

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3665C1	#FFFFFF	#000000	##FFFFFF
##3665C1	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#336FC4

Deuteranopia (green-blind)

#0D62BF

Tritanopia (blue-blind)

#007B8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3665c1;
/* rgb */ color: rgb(54, 101, 193);
/* oklch */ color: oklch(52.4% 0.153 262.1);

Tailwind

colors: {
  custom: {
    50: '#7e90d4',
    500: '#3665c1',
    950: '#000000',
  },
}

SCSS

$custom: #3665c1;
$custom-light: #7e90d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3665c1",
  "rgb": {
    "r": 54,
    "g": 101,
    "b": 193
  },
  "hsl": {
    "h": 219.712,
    "s": 56.275,
    "l": 48.431
  },
  "oklch": {
    "l": 0.52372,
    "c": 0.15327,
    "h": 262.1
  },
  "luminance": 0.13942
}

Semantic roles & 50–950 ramp

primary

#3665C1

secondary

#CBB488

accent

#AC48E0

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3665C1

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

Preview Lab → · Contrast checker → · Palette generator →