#3660D0#3660D0

#3660D0 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.4% C 0.180 H 265.2°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#3660D0
RGB	rgb(54, 96, 208)
HSL	hsl(224, 62%, 51%)
HSV	hsv(224, 74%, 82%)
CMYK	cmyk(74%, 53.8%, 0%, 18.4%)
CIE-LAB	lab(43.80, 24.41, -62.13)
CIE-LCH	lch(43.80, 66.76, 291.45°)
OKLab	oklab(52.43% -0.0152 -0.179)
OKLCH	oklch(52.43% 0.18 265.2)
XYZ	xyz(17.0853, 13.7022, 61.4066)
Luminance	0.1370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3660D0 #D0A636

analogous

#36ADD0 #3660D0 #5936D0

triadic

#3660D0 #D03660 #60D036

tetradic

#3660D0 #D036AD #D0A636 #36D059

square

#3660D0 #D036AD #D0A636 #36D059

split-complementary

#3660D0 #D05936 #ADD036

monochromatic

#1A3271 #2648A3 #3660D0 #6887DC #99AEE7

Accessibility & contrast

On white

5.61

#3660D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#3660D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3660D0

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3660D0	#FFFFFF	#000000	##FFFFFF
##3660D0	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD4

Deuteranopia (green-blind)

#0061CE

Tritanopia (blue-blind)

#007B8F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3660d0;
/* rgb */ color: rgb(54, 96, 208);
/* oklch */ color: oklch(52.4% 0.180 265.2);

Tailwind

colors: {
  custom: {
    50: '#828cdf',
    500: '#3660d0',
    950: '#000000',
  },
}

SCSS

$custom: #3660d0;
$custom-light: #828cdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3660d0",
  "rgb": {
    "r": 54,
    "g": 96,
    "b": 208
  },
  "hsl": {
    "h": 223.636,
    "s": 62.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.52435,
    "c": 0.17963,
    "h": 265.2
  },
  "luminance": 0.13704
}

Semantic roles & 50–950 ramp

primary

#3660D0

secondary

#D3C08F

accent

#B943E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3660D0

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

Preview Lab → · Contrast checker → · Palette generator →