#647BE0#647BE0

#647BE0 is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.4% C 0.154 H 271.5°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#647BE0
RGB	rgb(100, 123, 224)
HSL	hsl(229, 67%, 64%)
HSV	hsv(229, 55%, 88%)
CMYK	cmyk(55.4%, 45.1%, 0%, 12.2%)
CIE-LAB	lab(54.30, 20.69, -54.20)
CIE-LCH	lch(54.30, 58.01, 290.89°)
OKLab	oklab(61.37% 0.0041 -0.1544)
OKLCH	oklch(61.37% 0.154 271.5)
XYZ	xyz(25.7886, 22.2552, 73.4433)
Luminance	0.2226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BE0 #E0C964

analogous

#64B9E0 #647BE0 #8B64E0

triadic

#647BE0 #E0647B #7BE064

tetradic

#647BE0 #E064B9 #E0C964 #64E08B

square

#647BE0 #E064B9 #E0C964 #64E08B

split-complementary

#647BE0 #E08B64 #B9E064

monochromatic

#223BA8 #3150D6 #647BE0 #97A6EA #CAD2F4

Accessibility & contrast

On white

3.85

#647BE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#647BE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BE0

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BE0	#FFFFFF	#000000	##000000
##647BE0	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D88E4

Deuteranopia (green-blind)

#3D7DDE

Tritanopia (blue-blind)

#1C91A3

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #647be0;
/* rgb */ color: rgb(100, 123, 224);
/* oklch */ color: oklch(61.4% 0.154 271.5);

Tailwind

colors: {
  custom: {
    50: '#99a0ea',
    500: '#647be0',
    950: '#000000',
  },
}

SCSS

$custom: #647be0;
$custom-light: #99a0ea;
$custom-dark: #000000;

JSON

{
  "hex": "#647be0",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 224
  },
  "hsl": {
    "h": 228.871,
    "s": 66.667,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61365,
    "c": 0.15442,
    "h": 271.5
  },
  "luminance": 0.22257
}

Semantic roles & 50–950 ramp

primary

#647BE0

secondary

#E6DEBA

accent

#AC17CF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #647BE0

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

Preview Lab → · Contrast checker → · Palette generator →