#647BDC#647BDC

#647BDC is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.1% C 0.149 H 271.4°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#647BDC
RGB	rgb(100, 123, 220)
HSL	hsl(229, 63%, 63%)
HSV	hsv(229, 55%, 86%)
CMYK	cmyk(54.5%, 44.1%, 0%, 13.7%)
CIE-LAB	lab(54.07, 19.41, -52.31)
CIE-LCH	lch(54.07, 55.80, 290.35°)
OKLab	oklab(61.12% 0.0035 -0.1488)
OKLCH	oklch(61.12% 0.149 271.4)
XYZ	xyz(25.2525, 22.0407, 70.6199)
Luminance	0.2204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BDC #DCC564

analogous

#64B7DC #647BDC #8964DC

triadic

#647BDC #DC647B #7BDC64

tetradic

#647BDC #DC64B7 #DCC564 #64DC89

square

#647BDC #DC64B7 #DCC564 #64DC89

split-complementary

#647BDC #DC8964 #B7DC64

monochromatic

#243CA1 #3250D1 #647BDC #96A6E7 #C8D0F3

Accessibility & contrast

On white

3.88

#647BDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#647BDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BDC

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BDC	#FFFFFF	#000000	##000000
##647BDC	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5187E0

Deuteranopia (green-blind)

#427CDA

Tritanopia (blue-blind)

#2390A1

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647bdc;
/* rgb */ color: rgb(100, 123, 220);
/* oklch */ color: oklch(61.1% 0.149 271.4);

Tailwind

colors: {
  custom: {
    50: '#98a0e7',
    500: '#647bdc',
    950: '#000000',
  },
}

SCSS

$custom: #647bdc;
$custom-light: #98a0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#647bdc",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 220
  },
  "hsl": {
    "h": 228.5,
    "s": 63.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.61119,
    "c": 0.14886,
    "h": 271.4
  },
  "luminance": 0.22043
}

Semantic roles & 50–950 ramp

primary

#647BDC

secondary

#E4DBB8

accent

#A91BCB

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #647BDC

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

Preview Lab → · Contrast checker → · Palette generator →