#647CFF#647CFF

#647CFF is a light, vivid blue. Relative luminance 0.243; OKLCH L 63.6% C 0.195 H 271.9°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#647CFF
RGB	rgb(100, 124, 255)
HSL	hsl(231, 100%, 70%)
HSV	hsv(231, 61%, 100%)
CMYK	cmyk(60.8%, 51.4%, 0%, 0%)
CIE-LAB	lab(56.43, 30.15, -68.01)
CIE-LCH	lch(56.43, 74.40, 293.91°)
OKLab	oklab(63.58% 0.0065 -0.195)
OKLCH	oklch(63.58% 0.195 271.9)
XYZ	xyz(30.5072, 24.3421, 97.6792)
Luminance	0.2434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CFF #FFE764

analogous

#64C9FF #647CFF #9A64FF

triadic

#647CFF #FF647C #7CFF64

tetradic

#647CFF #FF64C9 #FFE764 #64FF9A

square

#647CFF #FF64C9 #FFE764 #64FF9A

split-complementary

#647CFF #FF9A64 #C9FF64

monochromatic

#0024E9 #2748FF #647CFF #A1B0FF #DEE3FF

Accessibility & contrast

On white

3.58

#647CFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#647CFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CFF

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CFF	#FFFFFF	#000000	##000000
##647CFF	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D8EFF

Deuteranopia (green-blind)

#0081FC

Tritanopia (blue-blind)

#009AB2

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #647cff;
/* rgb */ color: rgb(100, 124, 255);
/* oklch */ color: oklch(63.6% 0.195 271.9);

Tailwind

colors: {
  custom: {
    50: '#9da1ff',
    500: '#647cff',
    950: '#000000',
  },
}

SCSS

$custom: #647cff;
$custom-light: #9da1ff;
$custom-dark: #000000;

JSON

{
  "hex": "#647cff",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 255
  },
  "hsl": {
    "h": 230.71,
    "s": 100,
    "l": 69.608
  },
  "oklch": {
    "l": 0.63584,
    "c": 0.19508,
    "h": 271.9
  },
  "luminance": 0.24345
}

Semantic roles & 50–950 ramp

primary

#647CFF

secondary

#F6EFC9

accent

#C200E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100F18

muted

#7F7E86

Preview Lab

Preview with #647CFF

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

Preview Lab → · Contrast checker → · Palette generator →