#647CE0#647CE0

#647CE0 is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.6% C 0.153 H 271.1°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#647CE0
RGB	rgb(100, 124, 224)
HSL	hsl(228, 67%, 64%)
HSV	hsv(228, 55%, 88%)
CMYK	cmyk(55.4%, 44.6%, 0%, 12.2%)
CIE-LAB	lab(54.56, 20.08, -53.78)
CIE-LCH	lch(54.56, 57.41, 290.48°)
OKLab	oklab(61.56% 0.0031 -0.1531)
OKLCH	oklch(61.56% 0.153 271.1)
XYZ	xyz(25.9133, 22.5045, 73.4848)
Luminance	0.2251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CE0 #E0C864

analogous

#64BAE0 #647CE0 #8A64E0

triadic

#647CE0 #E0647C #7CE064

tetradic

#647CE0 #E064BA #E0C864 #64E08A

square

#647CE0 #E064BA #E0C864 #64E08A

split-complementary

#647CE0 #E08A64 #BAE064

monochromatic

#223CA8 #3151D6 #647CE0 #97A7EA #CAD2F4

Accessibility & contrast

On white

3.82

#647CE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#647CE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CE0

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CE0	#FFFFFF	#000000	##000000
##647CE0	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F88E4

Deuteranopia (green-blind)

#3F7DDE

Tritanopia (blue-blind)

#1B92A3

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #647ce0;
/* rgb */ color: rgb(100, 124, 224);
/* oklch */ color: oklch(61.6% 0.153 271.1);

Tailwind

colors: {
  custom: {
    50: '#99a1ea',
    500: '#647ce0',
    950: '#000000',
  },
}

SCSS

$custom: #647ce0;
$custom-light: #99a1ea;
$custom-dark: #000000;

JSON

{
  "hex": "#647ce0",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 224
  },
  "hsl": {
    "h": 228.387,
    "s": 66.667,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61564,
    "c": 0.15315,
    "h": 271.1
  },
  "luminance": 0.22506
}

Semantic roles & 50–950 ramp

primary

#647CE0

secondary

#E6DDBA

accent

#AB17CF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #647CE0

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

Preview Lab → · Contrast checker → · Palette generator →