#647FEB#647FEB

#647FEB is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.8% C 0.165 H 270.5°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#647FEB
RGB	rgb(100, 127, 235)
HSL	hsl(228, 77%, 66%)
HSV	hsv(228, 57%, 92%)
CMYK	cmyk(57.4%, 46%, 0%, 7.8%)
CIE-LAB	lab(55.97, 21.82, -57.67)
CIE-LCH	lch(55.97, 61.66, 290.72°)
OKLab	oklab(62.85% 0.0015 -0.1645)
OKLCH	oklch(62.85% 0.165 270.5)
XYZ	xyz(27.8353, 23.8841, 81.7244)
Luminance	0.2389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FEB #EBD064

analogous

#64C2EB #647FEB #8C64EB

triadic

#647FEB #EB647F #7FEB64

tetradic

#647FEB #EB64C2 #EBD064 #64EB8C

square

#647FEB #EB64C2 #EBD064 #64EB8C

split-complementary

#647FEB #EB8C64 #C2EB64

monochromatic

#1839BC #2E52E4 #647FEB #9AACF2 #D0D9F9

Accessibility & contrast

On white

3.63

#647FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#647FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FEB

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FEB	#FFFFFF	#000000	##000000
##647FEB	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C8CEF

Deuteranopia (green-blind)

#3881E9

Tritanopia (blue-blind)

#0097AA

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #647feb;
/* rgb */ color: rgb(100, 127, 235);
/* oklch */ color: oklch(62.8% 0.165 270.5);

Tailwind

colors: {
  custom: {
    50: '#9aa3f2',
    500: '#647feb',
    950: '#000000',
  },
}

SCSS

$custom: #647feb;
$custom-light: #9aa3f2;
$custom-dark: #000000;

JSON

{
  "hex": "#647feb",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 235
  },
  "hsl": {
    "h": 228,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.62847,
    "c": 0.16453,
    "h": 270.5
  },
  "luminance": 0.23886
}

Semantic roles & 50–950 ramp

primary

#647FEB

secondary

#ECE3BF

accent

#B00CD9

background

#FAFAFE

surface

#F3F3FD

border

#CDCDD5

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #647FEB

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

Preview Lab → · Contrast checker → · Palette generator →