#647CF3#647CF3

#647CF3 is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.8% C 0.179 H 271.7°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#647CF3
RGB	rgb(100, 124, 243)
HSL	hsl(230, 86%, 67%)
HSV	hsv(230, 59%, 95%)
CMYK	cmyk(58.8%, 49%, 0%, 4.7%)
CIE-LAB	lab(55.68, 26.23, -62.59)
CIE-LCH	lch(55.68, 67.86, 292.74°)
OKLab	oklab(62.78% 0.0055 -0.179)
OKLCH	oklch(62.78% 0.179 271.7)
XYZ	xyz(28.6355, 23.5934, 87.8216)
Luminance	0.2360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CF3 #F3DB64

analogous

#64C4F3 #647CF3 #9464F3

triadic

#647CF3 #F3647C #7CF364

tetradic

#647CF3 #F364C4 #F3DB64 #64F394

square

#647CF3 #F364C4 #F3DB64 #64F394

split-complementary

#647CF3 #F39464 #C4F364

monochromatic

#1030CD #2B4CEF #647CF3 #9DACF7 #D6DCFC

Accessibility & contrast

On white

3.67

#647CF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#647CF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CF3

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CF3	#FFFFFF	#000000	##000000
##647CF3	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E8CF7

Deuteranopia (green-blind)

#227FF1

Tritanopia (blue-blind)

#0097AC

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #647cf3;
/* rgb */ color: rgb(100, 124, 243);
/* oklch */ color: oklch(62.8% 0.179 271.7);

Tailwind

colors: {
  custom: {
    50: '#9ba1f8',
    500: '#647cf3',
    950: '#000000',
  },
}

SCSS

$custom: #647cf3;
$custom-light: #9ba1f8;
$custom-dark: #000000;

JSON

{
  "hex": "#647cf3",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 243
  },
  "hsl": {
    "h": 229.93,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.62777,
    "c": 0.17909,
    "h": 271.7
  },
  "luminance": 0.23596
}

Semantic roles & 50–950 ramp

primary

#647CF3

secondary

#F0E8C3

accent

#BD03E2

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #647CF3

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

Preview Lab → · Contrast checker → · Palette generator →