#647DE1#647DE1

#647DE1 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.8% C 0.153 H 270.8°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#647DE1
RGB	rgb(100, 125, 225)
HSL	hsl(228, 68%, 64%)
HSV	hsv(228, 56%, 88%)
CMYK	cmyk(55.6%, 44.4%, 0%, 11.8%)
CIE-LAB	lab(54.88, 19.80, -53.83)
CIE-LCH	lch(54.88, 57.36, 290.19°)
OKLab	oklab(61.83% 0.0021 -0.1533)
OKLCH	oklch(61.83% 0.153 270.8)
XYZ	xyz(26.1753, 22.8109, 74.2432)
Luminance	0.2281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DE1 #E1C864

analogous

#64BBE1 #647DE1 #8964E1

triadic

#647DE1 #E1647D #7DE164

tetradic

#647DE1 #E164BB #E1C864 #64E189

square

#647DE1 #E164BB #E1C864 #64E189

split-complementary

#647DE1 #E18964 #BBE164

monochromatic

#213CAA #3152D7 #647DE1 #97A8EB #CBD3F5

Accessibility & contrast

On white

3.78

#647DE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#647DE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DE1

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DE1	#FFFFFF	#000000	##000000
##647DE1	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5089E5

Deuteranopia (green-blind)

#407EDF

Tritanopia (blue-blind)

#1993A4

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647de1;
/* rgb */ color: rgb(100, 125, 225);
/* oklch */ color: oklch(61.8% 0.153 270.8);

Tailwind

colors: {
  custom: {
    50: '#99a2eb',
    500: '#647de1',
    950: '#000000',
  },
}

SCSS

$custom: #647de1;
$custom-light: #99a2eb;
$custom-dark: #000000;

JSON

{
  "hex": "#647de1",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 225
  },
  "hsl": {
    "h": 228,
    "s": 67.568,
    "l": 63.725
  },
  "oklch": {
    "l": 0.61826,
    "c": 0.15328,
    "h": 270.8
  },
  "luminance": 0.22813
}

Semantic roles & 50–950 ramp

primary

#647DE1

secondary

#E6DEBA

accent

#AA16CF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #647DE1

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

Preview Lab → · Contrast checker → · Palette generator →