#647BD5#647BD5

#647BD5 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.7% C 0.139 H 271.0°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#647BD5
RGB	rgb(100, 123, 213)
HSL	hsl(228, 57%, 61%)
HSV	hsv(228, 53%, 84%)
CMYK	cmyk(53.1%, 42.3%, 0%, 16.5%)
CIE-LAB	lab(53.68, 17.18, -48.98)
CIE-LCH	lch(53.68, 51.90, 289.32°)
OKLab	oklab(60.7% 0.0024 -0.1391)
OKLCH	oklch(60.7% 0.139 271)
XYZ	xyz(24.3448, 21.6777, 65.8392)
Luminance	0.2168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BD5 #D5BE64

analogous

#64B3D5 #647BD5 #8664D5

triadic

#647BD5 #D5647B #7BD564

tetradic

#647BD5 #D564B3 #D5BE64 #64D586

square

#647BD5 #D564B3 #D5BE64 #64D586

split-complementary

#647BD5 #D58664 #B3D564

monochromatic

#293F96 #3653C6 #647BD5 #94A4E2 #C4CDEF

Accessibility & contrast

On white

3.94

#647BD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#647BD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BD5

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BD5	#FFFFFF	#000000	##000000
##647BD5	1.00	3.94	5.34	5.34
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5585D8

Deuteranopia (green-blind)

#487CD3

Tritanopia (blue-blind)

#2D8F9E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647bd5;
/* rgb */ color: rgb(100, 123, 213);
/* oklch */ color: oklch(60.7% 0.139 271.0);

Tailwind

colors: {
  custom: {
    50: '#97a0e2',
    500: '#647bd5',
    950: '#000000',
  },
}

SCSS

$custom: #647bd5;
$custom-light: #97a0e2;
$custom-dark: #000000;

JSON

{
  "hex": "#647bd5",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 213
  },
  "hsl": {
    "h": 227.788,
    "s": 57.36,
    "l": 61.373
  },
  "oklch": {
    "l": 0.60697,
    "c": 0.13908,
    "h": 271
  },
  "luminance": 0.21679
}

Semantic roles & 50–950 ramp

primary

#647BD5

secondary

#E0D7B5

accent

#A321C5

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #647BD5

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

Preview Lab → · Contrast checker → · Palette generator →