#647BF1#647BF1

#647BF1 is a light, vivid blue. Relative luminance 0.232; OKLCH L 62.5% C 0.178 H 272.0°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#647BF1
RGB	rgb(100, 123, 241)
HSL	hsl(230, 83%, 67%)
HSV	hsv(230, 59%, 95%)
CMYK	cmyk(58.5%, 49%, 0%, 5.5%)
CIE-LAB	lab(55.30, 26.19, -62.08)
CIE-LCH	lch(55.30, 67.38, 292.87°)
OKLab	oklab(62.45% 0.0062 -0.1775)
OKLCH	oklch(62.45% 0.178 272)
XYZ	xyz(28.2104, 23.2239, 86.1981)
Luminance	0.2323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BF1 #F1DA64

analogous

#64C1F1 #647BF1 #9464F1

triadic

#647BF1 #F1647B #7BF164

tetradic

#647BF1 #F164C1 #F1DA64 #64F194

square

#647BF1 #F164C1 #F1DA64 #64F194

split-complementary

#647BF1 #F19464 #C1F164

monochromatic

#1230C8 #2C4BEC #647BF1 #9CABF6 #D4DBFB

Accessibility & contrast

On white

3.72

#647BF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#647BF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BF1

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BF1	#FFFFFF	#000000	##000000
##647BF1	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E8BF5

Deuteranopia (green-blind)

#237FEF

Tritanopia (blue-blind)

#0096AB

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #647bf1;
/* rgb */ color: rgb(100, 123, 241);
/* oklch */ color: oklch(62.5% 0.178 272.0);

Tailwind

colors: {
  custom: {
    50: '#9ba0f6',
    500: '#647bf1',
    950: '#000000',
  },
}

SCSS

$custom: #647bf1;
$custom-light: #9ba0f6;
$custom-dark: #000000;

JSON

{
  "hex": "#647bf1",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 241
  },
  "hsl": {
    "h": 230.213,
    "s": 83.432,
    "l": 66.863
  },
  "oklch": {
    "l": 0.62453,
    "c": 0.17764,
    "h": 272
  },
  "luminance": 0.23226
}

Semantic roles & 50–950 ramp

primary

#647BF1

secondary

#EFE8C2

accent

#BC06E0

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #647BF1

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

Preview Lab → · Contrast checker → · Palette generator →