#647EF8#647EF8

#647EF8 is a light, vivid blue. Relative luminance 0.244; OKLCH L 63.5% C 0.183 H 271.3°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#647EF8
RGB	rgb(100, 126, 248)
HSL	hsl(229, 91%, 68%)
HSV	hsv(229, 60%, 97%)
CMYK	cmyk(59.7%, 49.2%, 0%, 2.7%)
CIE-LAB	lab(56.49, 26.65, -64.05)
CIE-LCH	lch(56.49, 69.37, 292.59°)
OKLab	oklab(63.49% 0.004 -0.1833)
OKLCH	oklch(63.49% 0.183 271.3)
XYZ	xyz(29.6540, 24.4059, 91.9369)
Luminance	0.2441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EF8 #F8DE64

analogous

#64C8F8 #647EF8 #9464F8

triadic

#647EF8 #F8647E #7EF864

tetradic

#647EF8 #F864C8 #F8DE64 #64F894

square

#647EF8 #F864C8 #F8DE64 #64F894

split-complementary

#647EF8 #F89464 #C8F864

monochromatic

#0A2ED8 #294DF5 #647EF8 #9FAFFB #D9DFFD

Accessibility & contrast

On white

3.57

#647EF8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#647EF8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EF8

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EF8	#FFFFFF	#000000	##000000
##647EF8	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D8EFC

Deuteranopia (green-blind)

#1D81F5

Tritanopia (blue-blind)

#009AAF

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #647ef8;
/* rgb */ color: rgb(100, 126, 248);
/* oklch */ color: oklch(63.5% 0.183 271.3);

Tailwind

colors: {
  custom: {
    50: '#9ca3fb',
    500: '#647ef8',
    950: '#000000',
  },
}

SCSS

$custom: #647ef8;
$custom-light: #9ca3fb;
$custom-dark: #000000;

JSON

{
  "hex": "#647ef8",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 248
  },
  "hsl": {
    "h": 229.459,
    "s": 91.358,
    "l": 68.235
  },
  "oklch": {
    "l": 0.63492,
    "c": 0.18332,
    "h": 271.3
  },
  "luminance": 0.24408
}

Semantic roles & 50–950 ramp

primary

#647EF8

secondary

#F2EAC5

accent

#BD00E6

background

#FAFAFF

surface

#F4F3FF

border

#CECDD7

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #647EF8

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

Preview Lab → · Contrast checker → · Palette generator →