#647BD7#647BD7

#647BD7 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.8% C 0.142 H 271.1°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#647BD7
RGB	rgb(100, 123, 215)
HSL	hsl(228, 59%, 62%)
HSV	hsv(228, 53%, 84%)
CMYK	cmyk(53.5%, 42.8%, 0%, 15.7%)
CIE-LAB	lab(53.79, 17.81, -49.94)
CIE-LCH	lch(53.79, 53.02, 289.63°)
OKLab	oklab(60.82% 0.0027 -0.1419)
OKLCH	oklch(60.82% 0.142 271.1)
XYZ	xyz(24.6002, 21.7798, 67.1844)
Luminance	0.2178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BD7 #D7C064

analogous

#64B5D7 #647BD7 #8764D7

triadic

#647BD7 #D7647B #7BD764

tetradic

#647BD7 #D764B5 #D7C064 #64D787

square

#647BD7 #D764B5 #D7C064 #64D787

split-complementary

#647BD7 #D78764 #B5D764

monochromatic

#283E99 #3452CA #647BD7 #95A4E4 #C5CEF0

Accessibility & contrast

On white

3.92

#647BD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#647BD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BD7

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BD7	#FFFFFF	#000000	##000000
##647BD7	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5486DB

Deuteranopia (green-blind)

#477CD5

Tritanopia (blue-blind)

#2A8F9E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647bd7;
/* rgb */ color: rgb(100, 123, 215);
/* oklch */ color: oklch(60.8% 0.142 271.1);

Tailwind

colors: {
  custom: {
    50: '#98a0e4',
    500: '#647bd7',
    950: '#000000',
  },
}

SCSS

$custom: #647bd7;
$custom-light: #98a0e4;
$custom-dark: #000000;

JSON

{
  "hex": "#647bd7",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 215
  },
  "hsl": {
    "h": 228,
    "s": 58.974,
    "l": 61.765
  },
  "oklch": {
    "l": 0.60816,
    "c": 0.14189,
    "h": 271.1
  },
  "luminance": 0.21782
}

Semantic roles & 50–950 ramp

primary

#647BD7

secondary

#E1D8B6

accent

#A51FC7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E15

muted

#7E7E84

Preview Lab

Preview with #647BD7

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

Preview Lab → · Contrast checker → · Palette generator →