#647FEF#647FEF

#647FEF is a light, vivid blue. Relative luminance 0.241; OKLCH L 63.1% C 0.170 H 270.7°. Best body text is #000000 at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#647FEF
RGB	rgb(100, 127, 239)
HSL	hsl(228, 81%, 66%)
HSV	hsv(228, 58%, 94%)
CMYK	cmyk(58.2%, 46.9%, 0%, 6.3%)
CIE-LAB	lab(56.21, 23.12, -59.52)
CIE-LCH	lch(56.21, 63.85, 291.22°)
OKLab	oklab(63.1% 0.002 -0.1699)
OKLCH	oklch(63.1% 0.17 270.7)
XYZ	xyz(28.4197, 24.1178, 84.8022)
Luminance	0.2412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FEF #EFD464

analogous

#64C5EF #647FEF #8F64EF

triadic

#647FEF #EF647F #7FEF64

tetradic

#647FEF #EF64C5 #EFD464 #64EF8F

square

#647FEF #EF64C5 #EFD464 #64EF8F

split-complementary

#647FEF #EF8F64 #C5EF64

monochromatic

#1436C4 #2D51E9 #647FEF #9BADF5 #D3DBFA

Accessibility & contrast

On white

3.61

#647FEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.82

#647FEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FEF

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FEF	#FFFFFF	#000000	##000000
##647FEF	1.00	3.61	5.82	5.82
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.82	21.00	1.00	1.00
##000000	5.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#498DF3

Deuteranopia (green-blind)

#3381ED

Tritanopia (blue-blind)

#0098AB

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #647fef;
/* rgb */ color: rgb(100, 127, 239);
/* oklch */ color: oklch(63.1% 0.170 270.7);

Tailwind

colors: {
  custom: {
    50: '#9ba3f5',
    500: '#647fef',
    950: '#000000',
  },
}

SCSS

$custom: #647fef;
$custom-light: #9ba3f5;
$custom-dark: #000000;

JSON

{
  "hex": "#647fef",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 239
  },
  "hsl": {
    "h": 228.345,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.631,
    "c": 0.16996,
    "h": 270.7
  },
  "luminance": 0.2412
}

Semantic roles & 50–950 ramp

primary

#647FEF

secondary

#EEE5C1

accent

#B408DE

background

#FAFAFF

surface

#F4F3FE

border

#CECDD6

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #647FEF

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

Preview Lab → · Contrast checker → · Palette generator →