#647CEF#647CEF

#647CEF is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.5% C 0.174 H 271.7°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#647CEF
RGB	rgb(100, 124, 239)
HSL	hsl(230, 81%, 66%)
HSV	hsv(230, 58%, 94%)
CMYK	cmyk(58.2%, 48.1%, 0%, 6.3%)
CIE-LAB	lab(55.44, 24.93, -60.76)
CIE-LCH	lch(55.44, 65.67, 292.31°)
OKLab	oklab(62.52% 0.005 -0.1736)
OKLCH	oklch(62.52% 0.174 271.7)
XYZ	xyz(28.0380, 23.3544, 84.6750)
Luminance	0.2336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CEF #EFD764

analogous

#64C2EF #647CEF #9264EF

triadic

#647CEF #EF647C #7CEF64

tetradic

#647CEF #EF64C2 #EFD764 #64EF92

square

#647CEF #EF64C2 #EFD764 #64EF92

split-complementary

#647CEF #EF9264 #C2EF64

monochromatic

#1433C4 #2D4DE9 #647CEF #9BABF5 #D3DAFA

Accessibility & contrast

On white

3.70

#647CEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.67

#647CEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CEF

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CEF	#FFFFFF	#000000	##000000
##647CEF	1.00	3.70	5.67	5.67
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.67	21.00	1.00	1.00
##000000	5.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#428BF3

Deuteranopia (green-blind)

#2A7FED

Tritanopia (blue-blind)

#0096AA

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #647cef;
/* rgb */ color: rgb(100, 124, 239);
/* oklch */ color: oklch(62.5% 0.174 271.7);

Tailwind

colors: {
  custom: {
    50: '#9ba1f5',
    500: '#647cef',
    950: '#000000',
  },
}

SCSS

$custom: #647cef;
$custom-light: #9ba1f5;
$custom-dark: #000000;

JSON

{
  "hex": "#647cef",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 239
  },
  "hsl": {
    "h": 229.64,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.62515,
    "c": 0.17369,
    "h": 271.7
  },
  "luminance": 0.23357
}

Semantic roles & 50–950 ramp

primary

#647CEF

secondary

#EEE6C1

accent

#B908DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #647CEF

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

Preview Lab → · Contrast checker → · Palette generator →