#646EDF#646EDF

#646EDF is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.8% C 0.170 H 276.0°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#646EDF
RGB	rgb(100, 110, 223)
HSL	hsl(235, 66%, 63%)
HSV	hsv(235, 55%, 87%)
CMYK	cmyk(55.2%, 50.7%, 0%, 12.5%)
CIE-LAB	lab(50.91, 28.29, -59.07)
CIE-LCH	lch(50.91, 65.50, 295.59°)
OKLab	oklab(58.78% 0.0179 -0.1688)
OKLCH	oklch(58.78% 0.17 276)
XYZ	xyz(24.1465, 19.1872, 72.2288)
Luminance	0.1919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EDF #DFD564

analogous

#64ABDF #646EDF #9764DF

triadic

#646EDF #DF646E #6EDF64

tetradic

#646EDF #DF64AB #DFD564 #64DF97

square

#646EDF #DF64AB #DFD564 #64DF97

split-complementary

#646EDF #DF9764 #ABDF64

monochromatic

#222DA6 #313FD5 #646EDF #979DE9 #C9CDF4

Accessibility & contrast

On white

4.34

#646EDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#646EDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EDF

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EDF	#FFFFFF	#000000	##000000
##646EDF	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#327EE3

Deuteranopia (green-blind)

#1E74DD

Tritanopia (blue-blind)

#22879C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646edf;
/* rgb */ color: rgb(100, 110, 223);
/* oklch */ color: oklch(58.8% 0.170 276.0);

Tailwind

colors: {
  custom: {
    50: '#9997ea',
    500: '#646edf',
    950: '#000000',
  },
}

SCSS

$custom: #646edf;
$custom-light: #9997ea;
$custom-dark: #000000;

JSON

{
  "hex": "#646edf",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 223
  },
  "hsl": {
    "h": 235.122,
    "s": 65.775,
    "l": 63.333
  },
  "oklch": {
    "l": 0.58775,
    "c": 0.16976,
    "h": 276
  },
  "luminance": 0.19189
}

Semantic roles & 50–950 ramp

primary

#646EDF

secondary

#E5E2B9

accent

#BF18CE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0D16

muted

#7E7E84

Preview Lab

Preview with #646EDF

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

Preview Lab → · Contrast checker → · Palette generator →