#646DCE#646DCE

#646DCE is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.5% C 0.148 H 276.7°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#646DCE
RGB	rgb(100, 109, 206)
HSL	hsl(235, 52%, 60%)
HSV	hsv(235, 51%, 81%)
CMYK	cmyk(51.5%, 47.1%, 0%, 19.2%)
CIE-LAB	lab(49.62, 23.51, -51.49)
CIE-LCH	lch(49.62, 56.60, 294.54°)
OKLab	oklab(57.47% 0.0172 -0.1465)
OKLCH	oklch(57.47% 0.148 276.7)
XYZ	xyz(21.8612, 18.1015, 60.7225)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DCE #CEC564

analogous

#64A2CE #646DCE #9064CE

triadic

#646DCE #CE646D #6DCE64

tetradic

#646DCE #CE64A2 #CEC564 #64CE90

square

#646DCE #CE64A2 #CEC564 #64CE90

split-complementary

#646DCE #CE9064 #A2CE64

monochromatic

#2C348C #3B46BA #646DCE #9299DD #C1C5EB

Accessibility & contrast

On white

4.54

#646DCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#646DCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DCE

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DCE	#FFFFFF	#000000	##000000
##646DCE	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#427AD2

Deuteranopia (green-blind)

#3772CC

Tritanopia (blue-blind)

#378293

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #646dce;
/* rgb */ color: rgb(100, 109, 206);
/* oklch */ color: oklch(57.5% 0.148 276.7);

Tailwind

colors: {
  custom: {
    50: '#9796dd',
    500: '#646dce',
    950: '#000000',
  },
}

SCSS

$custom: #646dce;
$custom-light: #9796dd;
$custom-dark: #000000;

JSON

{
  "hex": "#646dce",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 206
  },
  "hsl": {
    "h": 234.906,
    "s": 51.961,
    "l": 60
  },
  "oklch": {
    "l": 0.57471,
    "c": 0.14754,
    "h": 276.7
  },
  "luminance": 0.18103
}

Semantic roles & 50–950 ramp

primary

#646DCE

secondary

#DBD8B2

accent

#CF4CDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646DCE

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

Preview Lab → · Contrast checker → · Palette generator →