#646EC7#646EC7

#646EC7 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.2% C 0.136 H 276.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#646EC7
RGB	rgb(100, 110, 199)
HSL	hsl(234, 47%, 59%)
HSV	hsv(234, 50%, 78%)
CMYK	cmyk(49.7%, 44.7%, 0%, 22%)
CIE-LAB	lab(49.48, 20.70, -47.71)
CIE-LCH	lch(49.48, 52.01, 293.46°)
OKLab	oklab(57.23% 0.0151 -0.1354)
OKLCH	oklch(57.23% 0.136 276.4)
XYZ	xyz(21.1370, 17.9835, 56.3791)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EC7 #C7BD64

analogous

#649FC7 #646EC7 #8B64C7

triadic

#646EC7 #C7646E #6EC764

tetradic

#646EC7 #C7649F #C7BD64 #64C78B

square

#646EC7 #C7649F #C7BD64 #64C78B

split-complementary

#646EC7 #C78B64 #9FC764

monochromatic

#2F3782 #3F4AAF #646EC7 #9198D7 #BEC2E7

Accessibility & contrast

On white

4.57

#646EC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#646EC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EC7

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EC7	#FFFFFF	#000000	##000000
##646EC7	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497ACA

Deuteranopia (green-blind)

#4072C5

Tritanopia (blue-blind)

#3D8191

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #646ec7;
/* rgb */ color: rgb(100, 110, 199);
/* oklch */ color: oklch(57.2% 0.136 276.4);

Tailwind

colors: {
  custom: {
    50: '#9697d8',
    500: '#646ec7',
    950: '#000000',
  },
}

SCSS

$custom: #646ec7;
$custom-light: #9697d8;
$custom-dark: #000000;

JSON

{
  "hex": "#646ec7",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 199
  },
  "hsl": {
    "h": 233.939,
    "s": 46.919,
    "l": 58.627
  },
  "oklch": {
    "l": 0.57232,
    "c": 0.13628,
    "h": 276.4
  },
  "luminance": 0.17985
}

Semantic roles & 50–950 ramp

primary

#646EC7

secondary

#D7D3B0

accent

#C951D7

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #646EC7

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

Preview Lab → · Contrast checker → · Palette generator →