#3660C7#3660C7

#3660C7 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.8% C 0.168 H 264.5°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#3660C7
RGB	rgb(54, 96, 199)
HSL	hsl(223, 57%, 50%)
HSV	hsv(223, 73%, 78%)
CMYK	cmyk(72.9%, 51.8%, 0%, 22%)
CIE-LAB	lab(43.17, 21.09, -57.97)
CIE-LCH	lch(43.17, 61.69, 289.99°)
OKLab	oklab(51.75% -0.016 -0.1668)
OKLCH	oklch(51.75% 0.168 264.5)
XYZ	xyz(16.0094, 13.2718, 55.7397)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3660C7 #C79D36

analogous

#36A8C7 #3660C7 #5536C7

triadic

#3660C7 #C73660 #60C736

tetradic

#3660C7 #C736A8 #C79D36 #36C755

square

#3660C7 #C736A8 #C79D36 #36C755

split-complementary

#3660C7 #C75536 #A8C736

monochromatic

#1C3267 #294997 #3660C7 #6585D5 #95ABE2

Accessibility & contrast

On white

5.75

#3660C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3660C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3660C7

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3660C7	#FFFFFF	#000000	##FFFFFF
##3660C7	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C6DCB

Deuteranopia (green-blind)

#0060C5

Tritanopia (blue-blind)

#00798A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3660c7;
/* rgb */ color: rgb(54, 96, 199);
/* oklch */ color: oklch(51.8% 0.168 264.5);

Tailwind

colors: {
  custom: {
    50: '#808cd9',
    500: '#3660c7',
    950: '#000000',
  },
}

SCSS

$custom: #3660c7;
$custom-light: #808cd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3660c7",
  "rgb": {
    "r": 54,
    "g": 96,
    "b": 199
  },
  "hsl": {
    "h": 222.621,
    "s": 57.312,
    "l": 49.608
  },
  "oklch": {
    "l": 0.51754,
    "c": 0.16752,
    "h": 264.5
  },
  "luminance": 0.13274
}

Semantic roles & 50–950 ramp

primary

#3660C7

secondary

#CEBA8B

accent

#B447E1

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3660C7

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

Preview Lab → · Contrast checker → · Palette generator →