#3661C2#3661C2

#3661C2 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.6% C 0.160 H 263.7°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3661C2
RGB	rgb(54, 97, 194)
HSL	hsl(222, 56%, 49%)
HSV	hsv(222, 72%, 76%)
CMYK	cmyk(72.2%, 50%, 0%, 23.9%)
CIE-LAB	lab(43.10, 18.59, -55.19)
CIE-LCH	lch(43.10, 58.24, 288.62°)
OKLab	oklab(51.6% -0.0174 -0.1585)
OKLCH	oklch(51.6% 0.16 263.7)
XYZ	xyz(15.5302, 13.2270, 52.7631)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3661C2 #C29736

analogous

#36A7C2 #3661C2 #5136C2

triadic

#3661C2 #C23661 #61C236

tetradic

#3661C2 #C236A7 #C29736 #36C251

square

#3661C2 #C236A7 #C29736 #36C251

split-complementary

#3661C2 #C25136 #A7C236

monochromatic

#1B3162 #294992 #3661C2 #6285D3 #92AAE1

Accessibility & contrast

On white

5.76

#3661C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3661C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3661C2

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3661C2	#FFFFFF	#000000	##FFFFFF
##3661C2	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#286DC6

Deuteranopia (green-blind)

#0060C0

Tritanopia (blue-blind)

#007888

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3661c2;
/* rgb */ color: rgb(54, 97, 194);
/* oklch */ color: oklch(51.6% 0.160 263.7);

Tailwind

colors: {
  custom: {
    50: '#7f8dd5',
    500: '#3661c2',
    950: '#000000',
  },
}

SCSS

$custom: #3661c2;
$custom-light: #7f8dd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3661c2",
  "rgb": {
    "r": 54,
    "g": 97,
    "b": 194
  },
  "hsl": {
    "h": 221.571,
    "s": 56.452,
    "l": 48.627
  },
  "oklch": {
    "l": 0.51596,
    "c": 0.1595,
    "h": 263.7
  },
  "luminance": 0.13229
}

Semantic roles & 50–950 ramp

primary

#3661C2

secondary

#CCB788

accent

#B148E0

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3661C2

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

Preview Lab → · Contrast checker → · Palette generator →