#3661C6#3661C6

#3661C6 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.9% C 0.165 H 264.1°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3661C6
RGB	rgb(54, 97, 198)
HSL	hsl(222, 57%, 49%)
HSV	hsv(222, 73%, 78%)
CMYK	cmyk(72.7%, 51%, 0%, 22.4%)
CIE-LAB	lab(43.37, 20.07, -57.07)
CIE-LCH	lch(43.37, 60.50, 289.38°)
OKLab	oklab(51.89% -0.0169 -0.1641)
OKLCH	oklch(51.89% 0.165 264.1)
XYZ	xyz(15.9855, 13.4092, 55.1609)
Luminance	0.1341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3661C6 #C69B36

analogous

#36A9C6 #3661C6 #5336C6

triadic

#3661C6 #C63661 #61C636

tetradic

#3661C6 #C636A9 #C69B36 #36C653

square

#3661C6 #C636A9 #C69B36 #36C653

split-complementary

#3661C6 #C65336 #A9C636

monochromatic

#1C3266 #294996 #3661C6 #6486D5 #94ACE2

Accessibility & contrast

On white

5.70

#3661C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3661C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3661C6

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3661C6	#FFFFFF	#000000	##FFFFFF
##3661C6	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#226DCA

Deuteranopia (green-blind)

#0060C4

Tritanopia (blue-blind)

#00798A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3661c6;
/* rgb */ color: rgb(54, 97, 198);
/* oklch */ color: oklch(51.9% 0.165 264.1);

Tailwind

colors: {
  custom: {
    50: '#808dd8',
    500: '#3661c6',
    950: '#000000',
  },
}

SCSS

$custom: #3661c6;
$custom-light: #808dd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3661c6",
  "rgb": {
    "r": 54,
    "g": 97,
    "b": 198
  },
  "hsl": {
    "h": 222.083,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.51887,
    "c": 0.16495,
    "h": 264.1
  },
  "luminance": 0.13411
}

Semantic roles & 50–950 ramp

primary

#3661C6

secondary

#CDB98B

accent

#B347E0

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3661C6

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

Preview Lab → · Contrast checker → · Palette generator →