#647EE0#647EE0

#647EE0 is a mid, vivid blue. Relative luminance 0.230; OKLCH L 62.0% C 0.151 H 270.3°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#647EE0
RGB	rgb(100, 126, 224)
HSL	hsl(227, 67%, 64%)
HSV	hsv(227, 55%, 88%)
CMYK	cmyk(55.4%, 43.7%, 0%, 12.2%)
CIE-LAB	lab(55.08, 18.87, -52.94)
CIE-LCH	lch(55.08, 56.20, 289.62°)
OKLab	oklab(61.97% 0.0009 -0.1506)
OKLCH	oklch(61.97% 0.151 270.3)
XYZ	xyz(26.1665, 23.0109, 73.5692)
Luminance	0.2301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EE0 #E0C664

analogous

#64BCE0 #647EE0 #8864E0

triadic

#647EE0 #E0647E #7EE064

tetradic

#647EE0 #E064BC #E0C664 #64E088

square

#647EE0 #E064BC #E0C664 #64E088

split-complementary

#647EE0 #E08864 #BCE064

monochromatic

#223EA8 #3154D6 #647EE0 #97A8EA #CAD3F4

Accessibility & contrast

On white

3.75

#647EE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#647EE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EE0

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EE0	#FFFFFF	#000000	##000000
##647EE0	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#538AE4

Deuteranopia (green-blind)

#437FDE

Tritanopia (blue-blind)

#1B94A4

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #647ee0;
/* rgb */ color: rgb(100, 126, 224);
/* oklch */ color: oklch(62.0% 0.151 270.3);

Tailwind

colors: {
  custom: {
    50: '#99a3ea',
    500: '#647ee0',
    950: '#000000',
  },
}

SCSS

$custom: #647ee0;
$custom-light: #99a3ea;
$custom-dark: #000000;

JSON

{
  "hex": "#647ee0",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 224
  },
  "hsl": {
    "h": 227.419,
    "s": 66.667,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61966,
    "c": 0.15064,
    "h": 270.3
  },
  "luminance": 0.23013
}

Semantic roles & 50–950 ramp

primary

#647EE0

secondary

#E6DDBA

accent

#A817CF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #647EE0

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

Preview Lab → · Contrast checker → · Palette generator →