#647BF9#647BF9

#647BF9 is a light, vivid blue. Relative luminance 0.237; OKLCH L 63.0% C 0.188 H 272.1°. Best body text is #000000 at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#647BF9
RGB	rgb(100, 123, 249)
HSL	hsl(231, 93%, 68%)
HSV	hsv(231, 60%, 98%)
CMYK	cmyk(59.8%, 50.6%, 0%, 2.4%)
CIE-LAB	lab(55.80, 28.79, -65.72)
CIE-LCH	lch(55.80, 71.75, 293.66°)
OKLab	oklab(62.99% 0.007 -0.1882)
OKLCH	oklch(62.99% 0.188 272.1)
XYZ	xyz(29.4317, 23.7124, 92.6301)
Luminance	0.2371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BF9 #F9E264

analogous

#64C6F9 #647BF9 #9764F9

triadic

#647BF9 #F9647B #7BF964

tetradic

#647BF9 #F964C6 #F9E264 #64F997

square

#647BF9 #F964C6 #F9E264 #64F997

split-complementary

#647BF9 #F99764 #C6F964

monochromatic

#0829DA #2949F7 #647BF9 #9FADFB #DADFFE

Accessibility & contrast

On white

3.66

#647BF9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.74

#647BF9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BF9

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BF9	#FFFFFF	#000000	##000000
##647BF9	1.00	3.66	5.74	5.74
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.74	21.00	1.00	1.00
##000000	5.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#348DFD

Deuteranopia (green-blind)

#047FF6

Tritanopia (blue-blind)

#0098AE

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #647bf9;
/* rgb */ color: rgb(100, 123, 249);
/* oklch */ color: oklch(63.0% 0.188 272.1);

Tailwind

colors: {
  custom: {
    50: '#9ca0fc',
    500: '#647bf9',
    950: '#000000',
  },
}

SCSS

$custom: #647bf9;
$custom-light: #9ca0fc;
$custom-dark: #000000;

JSON

{
  "hex": "#647bf9",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 249
  },
  "hsl": {
    "h": 230.738,
    "s": 92.547,
    "l": 68.431
  },
  "oklch": {
    "l": 0.62987,
    "c": 0.18836,
    "h": 272.1
  },
  "luminance": 0.23715
}

Semantic roles & 50–950 ramp

primary

#647BF9

secondary

#F3ECC6

accent

#C200E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E18

muted

#7F7E86

Preview Lab

Preview with #647BF9

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

Preview Lab → · Contrast checker → · Palette generator →