#647FEA#647FEA

#647FEA is a light, vivid blue. Relative luminance 0.238; OKLCH L 62.8% C 0.163 H 270.5°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#647FEA
RGB	rgb(100, 127, 234)
HSL	hsl(228, 76%, 65%)
HSV	hsv(228, 57%, 92%)
CMYK	cmyk(57.3%, 45.7%, 0%, 8.2%)
CIE-LAB	lab(55.91, 21.49, -57.20)
CIE-LCH	lch(55.91, 61.11, 290.59°)
OKLab	oklab(62.78% 0.0013 -0.1631)
OKLCH	oklch(62.78% 0.163 270.5)
XYZ	xyz(27.6913, 23.8264, 80.9657)
Luminance	0.2383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FEA #EACF64

analogous

#64C2EA #647FEA #8C64EA

triadic

#647FEA #EA647F #7FEA64

tetradic

#647FEA #EA64C2 #EACF64 #64EA8C

square

#647FEA #EA64C2 #EACF64 #64EA8C

split-complementary

#647FEA #EA8C64 #C2EA64

monochromatic

#193ABA #2E52E3 #647FEA #9AACF1 #D0D8F9

Accessibility & contrast

On white

3.64

#647FEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.77

#647FEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FEA

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FEA	#FFFFFF	#000000	##000000
##647FEA	1.00	3.64	5.77	5.77
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.77	21.00	1.00	1.00
##000000	5.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8CEE

Deuteranopia (green-blind)

#3A80E8

Tritanopia (blue-blind)

#0097A9

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #647fea;
/* rgb */ color: rgb(100, 127, 234);
/* oklch */ color: oklch(62.8% 0.163 270.5);

Tailwind

colors: {
  custom: {
    50: '#9aa3f1',
    500: '#647fea',
    950: '#000000',
  },
}

SCSS

$custom: #647fea;
$custom-light: #9aa3f1;
$custom-dark: #000000;

JSON

{
  "hex": "#647fea",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 234
  },
  "hsl": {
    "h": 227.91,
    "s": 76.136,
    "l": 65.49
  },
  "oklch": {
    "l": 0.62784,
    "c": 0.16316,
    "h": 270.5
  },
  "luminance": 0.23829
}

Semantic roles & 50–950 ramp

primary

#647FEA

secondary

#EBE2BE

accent

#AF0DD8

background

#FAFAFE

surface

#F3F3FD

border

#CDCDD5

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #647FEA

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

Preview Lab → · Contrast checker → · Palette generator →