#647BC7#647BC7

#647BC7 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.9% C 0.119 H 269.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#647BC7
RGB	rgb(100, 123, 199)
HSL	hsl(226, 47%, 59%)
HSV	hsv(226, 50%, 78%)
CMYK	cmyk(49.7%, 38.2%, 0%, 22%)
CIE-LAB	lab(52.95, 12.78, -42.20)
CIE-LCH	lch(52.95, 44.10, 286.85°)
OKLab	oklab(59.89% -0.0004 -0.1192)
OKLCH	oklch(59.89% 0.119 269.8)
XYZ	xyz(22.6440, 20.9973, 56.8814)
Luminance	0.2100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BC7 #C7B064

analogous

#64ACC7 #647BC7 #7E64C7

triadic

#647BC7 #C7647B #7BC764

tetradic

#647BC7 #C764AC #C7B064 #64C77E

square

#647BC7 #C764AC #C7B064 #64C77E

split-complementary

#647BC7 #C77E64 #ACC764

monochromatic

#2F4282 #3F59AF #647BC7 #91A1D7 #BEC8E7

Accessibility & contrast

On white

4.04

#647BC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#647BC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BC7

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BC7	#FFFFFF	#000000	##000000
##647BC7	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E83CA

Deuteranopia (green-blind)

#537AC5

Tritanopia (blue-blind)

#3A8B97

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647bc7;
/* rgb */ color: rgb(100, 123, 199);
/* oklch */ color: oklch(59.9% 0.119 269.8);

Tailwind

colors: {
  custom: {
    50: '#96a0d8',
    500: '#647bc7',
    950: '#000000',
  },
}

SCSS

$custom: #647bc7;
$custom-light: #96a0d8;
$custom-dark: #000000;

JSON

{
  "hex": "#647bc7",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 199
  },
  "hsl": {
    "h": 226.061,
    "s": 46.919,
    "l": 58.627
  },
  "oklch": {
    "l": 0.59891,
    "c": 0.11924,
    "h": 269.8
  },
  "luminance": 0.20999
}

Semantic roles & 50–950 ramp

primary

#647BC7

secondary

#D7CEB0

accent

#B851D7

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0E14

muted

#7E7E83

Preview Lab

Preview with #647BC7

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

Preview Lab → · Contrast checker → · Palette generator →