#647DE0#647DE0

#647DE0 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.8% C 0.152 H 270.7°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#647DE0
RGB	rgb(100, 125, 224)
HSL	hsl(228, 67%, 64%)
HSV	hsv(228, 55%, 88%)
CMYK	cmyk(55.4%, 44.2%, 0%, 12.2%)
CIE-LAB	lab(54.82, 19.48, -53.36)
CIE-LCH	lch(54.82, 56.80, 290.05°)
OKLab	oklab(61.77% 0.002 -0.1519)
OKLCH	oklch(61.77% 0.152 270.7)
XYZ	xyz(26.0393, 22.7565, 73.5268)
Luminance	0.2276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DE0 #E0C764

analogous

#64BBE0 #647DE0 #8964E0

triadic

#647DE0 #E0647D #7DE064

tetradic

#647DE0 #E064BB #E0C764 #64E089

square

#647DE0 #E064BB #E0C764 #64E089

split-complementary

#647DE0 #E08964 #BBE064

monochromatic

#223DA8 #3152D6 #647DE0 #97A8EA #CAD3F4

Accessibility & contrast

On white

3.78

#647DE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#647DE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DE0

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DE0	#FFFFFF	#000000	##000000
##647DE0	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5189E4

Deuteranopia (green-blind)

#417EDE

Tritanopia (blue-blind)

#1B93A4

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647de0;
/* rgb */ color: rgb(100, 125, 224);
/* oklch */ color: oklch(61.8% 0.152 270.7);

Tailwind

colors: {
  custom: {
    50: '#99a2ea',
    500: '#647de0',
    950: '#000000',
  },
}

SCSS

$custom: #647de0;
$custom-light: #99a2ea;
$custom-dark: #000000;

JSON

{
  "hex": "#647de0",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 224
  },
  "hsl": {
    "h": 227.903,
    "s": 66.667,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61765,
    "c": 0.15189,
    "h": 270.7
  },
  "luminance": 0.22758
}

Semantic roles & 50–950 ramp

primary

#647DE0

secondary

#E6DDBA

accent

#AA17CF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #647DE0

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

Preview Lab → · Contrast checker → · Palette generator →