#645FF2#645FF2

#645FF2 is a mid, highly saturated blue. Relative luminance 0.173; OKLCH L 57.5% C 0.214 H 278.8°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#645FF2
RGB	rgb(100, 95, 242)
HSL	hsl(242, 85%, 66%)
HSV	hsv(242, 61%, 95%)
CMYK	cmyk(58.7%, 60.7%, 0%, 5.1%)
CIE-LAB	lab(48.64, 43.31, -73.42)
CIE-LCH	lch(48.64, 85.24, 300.54°)
OKLab	oklab(57.5% 0.0327 -0.2111)
OKLCH	oklch(57.5% 0.214 278.8)
XYZ	xyz(25.3696, 17.3027, 85.9901)
Luminance	0.1731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FF2 #EDF25F

analogous

#5FA3F2 #645FF2 #AD5FF2

triadic

#645FF2 #F2645F #5FF264

tetradic

#645FF2 #F25FA3 #EDF25F #5FF2AD

square

#645FF2 #F25FA3 #EDF25F #5FF2AD

split-complementary

#645FF2 #F2AD5F #A3F25F

monochromatic

#1610C6 #2D26ED #645FF2 #9B98F7 #D2D0FB

Accessibility & contrast

On white

4.71

#645FF2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#645FF2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FF2

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FF2	#FFFFFF	#000000	##FFFFFF
##645FF2	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079F7

Deuteranopia (green-blind)

#006EEF

Tritanopia (blue-blind)

#0083A0

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #645ff2;
/* rgb */ color: rgb(100, 95, 242);
/* oklch */ color: oklch(57.5% 0.214 278.8);

Tailwind

colors: {
  custom: {
    50: '#9d8df7',
    500: '#645ff2',
    950: '#000000',
  },
}

SCSS

$custom: #645ff2;
$custom-light: #9d8df7;
$custom-dark: #000000;

JSON

{
  "hex": "#645ff2",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 242
  },
  "hsl": {
    "h": 242.041,
    "s": 84.971,
    "l": 66.078
  },
  "oklch": {
    "l": 0.57503,
    "c": 0.21364,
    "h": 278.8
  },
  "luminance": 0.17305
}

Semantic roles & 50–950 ramp

primary

#645FF2

secondary

#EDEFBE

accent

#E104DA

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645FF2

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

Preview Lab → · Contrast checker → · Palette generator →