#647BE3#647BE3

#647BE3 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.6% C 0.159 H 271.6°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#647BE3
RGB	rgb(100, 123, 227)
HSL	hsl(229, 69%, 64%)
HSV	hsv(229, 56%, 89%)
CMYK	cmyk(55.9%, 45.8%, 0%, 11%)
CIE-LAB	lab(54.47, 21.65, -55.60)
CIE-LCH	lch(54.47, 59.67, 291.28°)
OKLab	oklab(61.55% 0.0046 -0.1585)
OKLCH	oklch(61.55% 0.159 271.6)
XYZ	xyz(26.1991, 22.4194, 75.6049)
Luminance	0.2242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BE3 #E3CC64

analogous

#64BBE3 #647BE3 #8D64E3

triadic

#647BE3 #E3647B #7BE364

tetradic

#647BE3 #E364BB #E3CC64 #64E38D

square

#647BE3 #E364BB #E3CC64 #64E38D

split-complementary

#647BE3 #E38D64 #BBE364

monochromatic

#1F39AD #304FDA #647BE3 #98A7EC #CCD3F6

Accessibility & contrast

On white

3.83

#647BE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#647BE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BE3

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BE3	#FFFFFF	#000000	##000000
##647BE3	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B88E7

Deuteranopia (green-blind)

#3A7DE1

Tritanopia (blue-blind)

#1592A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #647be3;
/* rgb */ color: rgb(100, 123, 227);
/* oklch */ color: oklch(61.6% 0.159 271.6);

Tailwind

colors: {
  custom: {
    50: '#99a0ec',
    500: '#647be3',
    950: '#000000',
  },
}

SCSS

$custom: #647be3;
$custom-light: #99a0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#647be3",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 227
  },
  "hsl": {
    "h": 229.134,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.61552,
    "c": 0.15856,
    "h": 271.6
  },
  "luminance": 0.22421
}

Semantic roles & 50–950 ramp

primary

#647BE3

secondary

#E8E0BB

accent

#AF14D1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #647BE3

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

Preview Lab → · Contrast checker → · Palette generator →