#647FC7#647FC7

#647FC7 is a mid, moderate blue. Relative luminance 0.220; OKLCH L 60.7% C 0.114 H 267.4°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#647FC7
RGB	rgb(100, 127, 199)
HSL	hsl(224, 47%, 59%)
HSV	hsv(224, 50%, 78%)
CMYK	cmyk(49.7%, 36.2%, 0%, 22%)
CIE-LAB	lab(54.04, 10.37, -40.48)
CIE-LCH	lch(54.04, 41.79, 284.37°)
OKLab	oklab(60.73% -0.0052 -0.1142)
OKLCH	oklch(60.73% 0.114 267.4)
XYZ	xyz(23.1503, 22.0101, 57.0502)
Luminance	0.2201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FC7 #C7AC64

analogous

#64B0C7 #647FC7 #7A64C7

triadic

#647FC7 #C7647F #7FC764

tetradic

#647FC7 #C764B0 #C7AC64 #64C77A

square

#647FC7 #C764B0 #C7AC64 #64C77A

split-complementary

#647FC7 #C77A64 #B0C764

monochromatic

#2F4582 #3F5EAF #647FC7 #91A4D7 #BEC9E7

Accessibility & contrast

On white

3.89

#647FC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#647FC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FC7

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FC7	#FFFFFF	#000000	##000000
##647FC7	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6386CA

Deuteranopia (green-blind)

#597DC5

Tritanopia (blue-blind)

#398E9A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647fc7;
/* rgb */ color: rgb(100, 127, 199);
/* oklch */ color: oklch(60.7% 0.114 267.4);

Tailwind

colors: {
  custom: {
    50: '#96a3d8',
    500: '#647fc7',
    950: '#000000',
  },
}

SCSS

$custom: #647fc7;
$custom-light: #96a3d8;
$custom-dark: #000000;

JSON

{
  "hex": "#647fc7",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 199
  },
  "hsl": {
    "h": 223.636,
    "s": 46.919,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60733,
    "c": 0.11431,
    "h": 267.4
  },
  "luminance": 0.22012
}

Semantic roles & 50–950 ramp

primary

#647FC7

secondary

#D7CCB0

accent

#B251D7

background

#F9FAFD

surface

#F2F3FA

border

#CCCDD3

text

#0E0F14

muted

#7E7F83

Preview Lab

Preview with #647FC7

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

Preview Lab → · Contrast checker → · Palette generator →