#647FE9#647FE9

#647FE9 is a light, vivid blue. Relative luminance 0.238; OKLCH L 62.7% C 0.162 H 270.4°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#647FE9
RGB	rgb(100, 127, 233)
HSL	hsl(228, 75%, 65%)
HSV	hsv(228, 57%, 91%)
CMYK	cmyk(57.1%, 45.5%, 0%, 8.6%)
CIE-LAB	lab(55.86, 21.17, -56.74)
CIE-LCH	lch(55.86, 60.56, 290.46°)
OKLab	oklab(62.72% 0.0012 -0.1618)
OKLCH	oklch(62.72% 0.162 270.4)
XYZ	xyz(27.5480, 23.7691, 80.2112)
Luminance	0.2377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FE9 #E9CE64

analogous

#64C1E9 #647FE9 #8C64E9

triadic

#647FE9 #E9647F #7FE964

tetradic

#647FE9 #E964C1 #E9CE64 #64E98C

square

#647FE9 #E964C1 #E9CE64 #64E98C

split-complementary

#647FE9 #E98C64 #C1E964

monochromatic

#1A3AB8 #2E53E1 #647FE9 #9AABF1 #CFD8F8

Accessibility & contrast

On white

3.65

#647FE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#647FE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FE9

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FE9	#FFFFFF	#000000	##000000
##647FE9	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E8CED

Deuteranopia (green-blind)

#3B80E7

Tritanopia (blue-blind)

#0097A9

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #647fe9;
/* rgb */ color: rgb(100, 127, 233);
/* oklch */ color: oklch(62.7% 0.162 270.4);

Tailwind

colors: {
  custom: {
    50: '#9aa3f0',
    500: '#647fe9',
    950: '#000000',
  },
}

SCSS

$custom: #647fe9;
$custom-light: #9aa3f0;
$custom-dark: #000000;

JSON

{
  "hex": "#647fe9",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 233
  },
  "hsl": {
    "h": 227.82,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.62721,
    "c": 0.16179,
    "h": 270.4
  },
  "luminance": 0.23771
}

Semantic roles & 50–950 ramp

primary

#647FE9

secondary

#EBE2BE

accent

#AE0ED7

background

#FAFAFE

surface

#F3F3FD

border

#CDCDD5

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #647FE9

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

Preview Lab → · Contrast checker → · Palette generator →