#3667EE#3667EE

#3667EE is a mid, highly saturated blue. Relative luminance 0.167; OKLCH L 56.2% C 0.210 H 265.0°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3667EE
RGB	rgb(54, 103, 238)
HSL	hsl(224, 84%, 57%)
HSV	hsv(224, 77%, 93%)
CMYK	cmyk(77.3%, 56.7%, 0%, 6.7%)
CIE-LAB	lab(47.82, 30.96, -72.61)
CIE-LCH	lch(47.82, 78.94, 293.09°)
OKLab	oklab(56.16% -0.0182 -0.2097)
OKLCH	oklch(56.16% 0.21 265)
XYZ	xyz(21.7987, 16.6553, 82.9383)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3667EE #EEBD36

analogous

#36C3EE #3667EE #6136EE

triadic

#3667EE #EE3667 #67EE36

tetradic

#3667EE #EE36C3 #EEBD36 #36EE61

square

#3667EE #EE36C3 #EEBD36 #36EE61

split-complementary

#3667EE #EE6136 #C3EE36

monochromatic

#0D339C #1246D5 #3667EE #6E92F3 #A7BCF8

Accessibility & contrast

On white

4.85

#3667EE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#3667EE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3667EE

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3667EE	#FFFFFF	#000000	##FFFFFF
##3667EE	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AF3

Deuteranopia (green-blind)

#0069EB

Tritanopia (blue-blind)

#0089A0

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3667ee;
/* rgb */ color: rgb(54, 103, 238);
/* oklch */ color: oklch(56.2% 0.210 265.0);

Tailwind

colors: {
  custom: {
    50: '#8891f4',
    500: '#3667ee',
    950: '#000000',
  },
}

SCSS

$custom: #3667ee;
$custom-light: #8891f4;
$custom-dark: #000000;

JSON

{
  "hex": "#3667ee",
  "rgb": {
    "r": 54,
    "g": 103,
    "b": 238
  },
  "hsl": {
    "h": 224.022,
    "s": 84.404,
    "l": 57.255
  },
  "oklch": {
    "l": 0.56155,
    "c": 0.21048,
    "h": 265
  },
  "luminance": 0.16658
}

Semantic roles & 50–950 ramp

primary

#3667EE

secondary

#E5D19B

accent

#C42DFB

background

#F9F8FF

surface

#F2F0FE

border

#CCCBD6

text

#0D0C17

muted

#7E7D85

Preview Lab

Preview with #3667EE

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

Preview Lab → · Contrast checker → · Palette generator →