#647EE5#647EE5

#647EE5 is a light, vivid blue. Relative luminance 0.233; OKLCH L 62.3% C 0.158 H 270.6°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#647EE5
RGB	rgb(100, 126, 229)
HSL	hsl(228, 71%, 65%)
HSV	hsv(228, 56%, 90%)
CMYK	cmyk(56.3%, 45%, 0%, 10.2%)
CIE-LAB	lab(55.37, 20.48, -55.29)
CIE-LCH	lch(55.37, 58.96, 290.33°)
OKLab	oklab(62.27% 0.0017 -0.1575)
OKLCH	oklch(62.27% 0.158 270.6)
XYZ	xyz(26.8546, 23.2861, 77.1931)
Luminance	0.2329 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EE5 #E5CB64

analogous

#64BFE5 #647EE5 #8B64E5

triadic

#647EE5 #E5647E #7EE564

tetradic

#647EE5 #E564BF #E5CB64 #64E58B

square

#647EE5 #E564BF #E5CB64 #64E58B

split-complementary

#647EE5 #E58B64 #BFE564

monochromatic

#1E3BB1 #3052DC #647EE5 #98AAEE #CDD5F7

Accessibility & contrast

On white

3.71

#647EE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#647EE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EE5

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EE5	#FFFFFF	#000000	##000000
##647EE5	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F8BE9

Deuteranopia (green-blind)

#3E7FE3

Tritanopia (blue-blind)

#0D95A6

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #647ee5;
/* rgb */ color: rgb(100, 126, 229);
/* oklch */ color: oklch(62.3% 0.158 270.6);

Tailwind

colors: {
  custom: {
    50: '#99a3ee',
    500: '#647ee5',
    950: '#000000',
  },
}

SCSS

$custom: #647ee5;
$custom-light: #99a3ee;
$custom-dark: #000000;

JSON

{
  "hex": "#647ee5",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 229
  },
  "hsl": {
    "h": 227.907,
    "s": 71.271,
    "l": 64.51
  },
  "oklch": {
    "l": 0.62273,
    "c": 0.15755,
    "h": 270.6
  },
  "luminance": 0.23288
}

Semantic roles & 50–950 ramp

primary

#647EE5

secondary

#E9E0BC

accent

#AC12D3

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #647EE5

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

Preview Lab → · Contrast checker → · Palette generator →