#3660D4#3660D4

#3660D4 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.7% C 0.185 H 265.4°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#3660D4
RGB	rgb(54, 96, 212)
HSL	hsl(224, 65%, 52%)
HSV	hsv(224, 75%, 83%)
CMYK	cmyk(74.5%, 54.7%, 0%, 16.9%)
CIE-LAB	lab(44.09, 25.89, -63.96)
CIE-LCH	lch(44.09, 69.00, 292.04°)
OKLab	oklab(52.74% -0.0149 -0.1844)
OKLCH	oklch(52.74% 0.185 265.4)
XYZ	xyz(17.5837, 13.9015, 64.0311)
Luminance	0.1390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3660D4 #D4AA36

analogous

#36AFD4 #3660D4 #5B36D4

triadic

#3660D4 #D43660 #60D436

tetradic

#3660D4 #D436AF #D4AA36 #36D45B

square

#3660D4 #D436AF #D4AA36 #36D45B

split-complementary

#3660D4 #D45B36 #AFD436

monochromatic

#193276 #2447A9 #3660D4 #6888DF #9BB0EA

Accessibility & contrast

On white

5.55

#3660D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3660D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3660D4

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3660D4	#FFFFFF	#000000	##FFFFFF
##3660D4	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070D8

Deuteranopia (green-blind)

#0061D2

Tritanopia (blue-blind)

#007C91

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3660d4;
/* rgb */ color: rgb(54, 96, 212);
/* oklch */ color: oklch(52.7% 0.185 265.4);

Tailwind

colors: {
  custom: {
    50: '#838ce2',
    500: '#3660d4',
    950: '#000000',
  },
}

SCSS

$custom: #3660d4;
$custom-light: #838ce2;
$custom-dark: #000000;

JSON

{
  "hex": "#3660d4",
  "rgb": {
    "r": 54,
    "g": 96,
    "b": 212
  },
  "hsl": {
    "h": 224.051,
    "s": 64.754,
    "l": 52.157
  },
  "oklch": {
    "l": 0.52744,
    "c": 0.18496,
    "h": 265.4
  },
  "luminance": 0.13903
}

Semantic roles & 50–950 ramp

primary

#3660D4

secondary

#D5C390

accent

#BB40E8

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3660D4

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

Preview Lab → · Contrast checker → · Palette generator →