#647CE4#647CE4

#647CE4 is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.8% C 0.159 H 271.3°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#647CE4
RGB	rgb(100, 124, 228)
HSL	hsl(229, 70%, 64%)
HSV	hsv(229, 56%, 89%)
CMYK	cmyk(56.1%, 45.6%, 0%, 10.6%)
CIE-LAB	lab(54.79, 21.37, -55.66)
CIE-LCH	lch(54.79, 59.62, 291.01°)
OKLab	oklab(61.81% 0.0036 -0.1586)
OKLCH	oklch(61.81% 0.159 271.3)
XYZ	xyz(26.4622, 22.7241, 76.3755)
Luminance	0.2273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CE4 #E4CC64

analogous

#64BCE4 #647CE4 #8C64E4

triadic

#647CE4 #E4647C #7CE464

tetradic

#647CE4 #E464BC #E4CC64 #64E48C

square

#647CE4 #E464BC #E4CC64 #64E48C

split-complementary

#647CE4 #E48C64 #BCE464

monochromatic

#1F3AAF #3050DB #647CE4 #98A8ED #CCD4F6

Accessibility & contrast

On white

3.79

#647CE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#647CE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CE4

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CE4	#FFFFFF	#000000	##000000
##647CE4	1.00	3.79	5.55	5.55
#FFFFFF	3.79	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)

#4C89E8

Deuteranopia (green-blind)

#3B7EE2

Tritanopia (blue-blind)

#1293A5

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647ce4;
/* rgb */ color: rgb(100, 124, 228);
/* oklch */ color: oklch(61.8% 0.159 271.3);

Tailwind

colors: {
  custom: {
    50: '#99a1ed',
    500: '#647ce4',
    950: '#000000',
  },
}

SCSS

$custom: #647ce4;
$custom-light: #99a1ed;
$custom-dark: #000000;

JSON

{
  "hex": "#647ce4",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 228
  },
  "hsl": {
    "h": 228.75,
    "s": 70.33,
    "l": 64.314
  },
  "oklch": {
    "l": 0.61813,
    "c": 0.15867,
    "h": 271.3
  },
  "luminance": 0.22726
}

Semantic roles & 50–950 ramp

primary

#647CE4

secondary

#E8E0BC

accent

#AE13D2

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #647CE4

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

Preview Lab → · Contrast checker → · Palette generator →