#647FE3#647FE3

#647FE3 is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.4% C 0.154 H 270.1°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#647FE3
RGB	rgb(100, 127, 227)
HSL	hsl(227, 69%, 64%)
HSV	hsv(227, 56%, 89%)
CMYK	cmyk(55.9%, 44.1%, 0%, 11%)
CIE-LAB	lab(55.51, 19.23, -53.93)
CIE-LCH	lch(55.51, 57.26, 289.62°)
OKLab	oklab(62.35% 0.0003 -0.1535)
OKLCH	oklch(62.35% 0.154 270.1)
XYZ	xyz(26.7054, 23.4321, 75.7737)
Luminance	0.2343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FE3 #E3C864

analogous

#64BFE3 #647FE3 #8964E3

triadic

#647FE3 #E3647F #7FE364

tetradic

#647FE3 #E364BF #E3C864 #64E389

square

#647FE3 #E364BF #E3C864 #64E389

split-complementary

#647FE3 #E38964 #BFE364

monochromatic

#1F3DAD #3054DA #647FE3 #98AAEC #CCD5F6

Accessibility & contrast

On white

3.69

#647FE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#647FE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FE3

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FE3	#FFFFFF	#000000	##000000
##647FE3	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#528BE7

Deuteranopia (green-blind)

#4280E1

Tritanopia (blue-blind)

#1395A6

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #647fe3;
/* rgb */ color: rgb(100, 127, 227);
/* oklch */ color: oklch(62.4% 0.154 270.1);

Tailwind

colors: {
  custom: {
    50: '#99a3ec',
    500: '#647fe3',
    950: '#000000',
  },
}

SCSS

$custom: #647fe3;
$custom-light: #99a3ec;
$custom-dark: #000000;

JSON

{
  "hex": "#647fe3",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 227
  },
  "hsl": {
    "h": 227.244,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.6235,
    "c": 0.15355,
    "h": 270.1
  },
  "luminance": 0.23434
}

Semantic roles & 50–950 ramp

primary

#647FE3

secondary

#E8DEBB

accent

#A914D1

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0F0F16

muted

#7E7F84

Preview Lab

Preview with #647FE3

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

Preview Lab → · Contrast checker → · Palette generator →