#646EDD#646EDD

#646EDD is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.6% C 0.167 H 276.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#646EDD
RGB	rgb(100, 110, 221)
HSL	hsl(235, 64%, 63%)
HSV	hsv(235, 55%, 87%)
CMYK	cmyk(54.8%, 50.2%, 0%, 13.3%)
CIE-LAB	lab(50.78, 27.65, -58.14)
CIE-LCH	lch(50.78, 64.38, 295.43°)
OKLab	oklab(58.64% 0.0177 -0.1661)
OKLCH	oklch(58.64% 0.167 276.1)
XYZ	xyz(23.8784, 19.0800, 70.8171)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EDD #DDD364

analogous

#64ABDD #646EDD #9664DD

triadic

#646EDD #DD646E #6EDD64

tetradic

#646EDD #DD64AB #DDD364 #64DD96

square

#646EDD #DD64AB #DDD364 #64DD96

split-complementary

#646EDD #DD9664 #ABDD64

monochromatic

#242EA3 #323FD2 #646EDD #969DE8 #C8CCF3

Accessibility & contrast

On white

4.36

#646EDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#646EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EDD

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EDD	#FFFFFF	#000000	##000000
##646EDD	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#357EE1

Deuteranopia (green-blind)

#2274DB

Tritanopia (blue-blind)

#25879B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646edd;
/* rgb */ color: rgb(100, 110, 221);
/* oklch */ color: oklch(58.6% 0.167 276.1);

Tailwind

colors: {
  custom: {
    50: '#9997e8',
    500: '#646edd',
    950: '#000000',
  },
}

SCSS

$custom: #646edd;
$custom-light: #9997e8;
$custom-dark: #000000;

JSON

{
  "hex": "#646edd",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 221
  },
  "hsl": {
    "h": 235.041,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.58641,
    "c": 0.16702,
    "h": 276.1
  },
  "luminance": 0.19082
}

Semantic roles & 50–950 ramp

primary

#646EDD

secondary

#E4E1B9

accent

#BD1ACC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0D16

muted

#7E7E84

Preview Lab

Preview with #646EDD

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

Preview Lab → · Contrast checker → · Palette generator →