#644EE3#644EE3

#644EE3 is a mid, highly saturated blue. Relative luminance 0.137; OKLCH L 53.6% C 0.215 H 283.1°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#644EE3
RGB	rgb(100, 78, 227)
HSL	hsl(249, 73%, 60%)
HSV	hsv(249, 66%, 89%)
CMYK	cmyk(55.9%, 65.6%, 0%, 11%)
CIE-LAB	lab(43.80, 48.48, -72.85)
CIE-LCH	lch(43.80, 87.51, 303.64°)
OKLab	oklab(53.62% 0.0488 -0.2095)
OKLCH	oklch(53.62% 0.215 283.1)
XYZ	xyz(21.8408, 13.7028, 74.1522)
Luminance	0.1370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EE3 #CDE34E

analogous

#4E83E3 #644EE3 #AF4EE3

triadic

#644EE3 #E3644E #4EE364

tetradic

#644EE3 #E34E83 #CDE34E #4EE3AF

square

#644EE3 #E34E83 #CDE34E #4EE3AF

split-complementary

#644EE3 #E3AF4E #83E34E

monochromatic

#2D199E #3B21D3 #644EE3 #9283EB #C1B8F4

Accessibility & contrast

On white

5.61

#644EE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#644EE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EE3

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EE3	#FFFFFF	#000000	##FFFFFF
##644EE3	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CE8

Deuteranopia (green-blind)

#0062E0

Tritanopia (blue-blind)

#237492

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #644ee3;
/* rgb */ color: rgb(100, 78, 227);
/* oklch */ color: oklch(53.6% 0.215 283.1);

Tailwind

colors: {
  custom: {
    50: '#9c81ed',
    500: '#644ee3',
    950: '#000000',
  },
}

SCSS

$custom: #644ee3;
$custom-light: #9c81ed;
$custom-dark: #000000;

JSON

{
  "hex": "#644ee3",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 227
  },
  "hsl": {
    "h": 248.859,
    "s": 72.683,
    "l": 59.804
  },
  "oklch": {
    "l": 0.53619,
    "c": 0.21513,
    "h": 283.1
  },
  "luminance": 0.13704
}

Semantic roles & 50–950 ramp

primary

#644EE3

secondary

#DBE3AA

accent

#EF38D4

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644EE3

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

Preview Lab → · Contrast checker → · Palette generator →