#645FEF#645FEF

#645FEF is a mid, highly saturated blue. Relative luminance 0.171; OKLCH L 57.3% C 0.210 H 279.0°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#645FEF
RGB	rgb(100, 95, 239)
HSL	hsl(242, 82%, 65%)
HSV	hsv(242, 60%, 94%)
CMYK	cmyk(58.2%, 60.3%, 0%, 6.3%)
CIE-LAB	lab(48.42, 42.37, -72.10)
CIE-LCH	lch(48.42, 83.63, 300.44°)
OKLab	oklab(57.27% 0.0328 -0.2073)
OKLCH	oklch(57.27% 0.21 279)
XYZ	xyz(24.9228, 17.1240, 83.6365)
Luminance	0.1713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FEF #EAEF5F

analogous

#5FA2EF #645FEF #AC5FEF

triadic

#645FEF #EF645F #5FEF64

tetradic

#645FEF #EF5FA2 #EAEF5F #5FEFAC

square

#645FEF #EF5FA2 #EAEF5F #5FEFAC

split-complementary

#645FEF #EFAC5F #A2EF5F

monochromatic

#1913C0 #2E27E9 #645FEF #9A97F5 #D0CEFA

Accessibility & contrast

On white

4.75

#645FEF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#645FEF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FEF

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FEF	#FFFFFF	#000000	##FFFFFF
##645FEF	1.00	4.75	4.43	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079F4

Deuteranopia (green-blind)

#006DEC

Tritanopia (blue-blind)

#00829E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #645fef;
/* rgb */ color: rgb(100, 95, 239);
/* oklch */ color: oklch(57.3% 0.210 279.0);

Tailwind

colors: {
  custom: {
    50: '#9c8df5',
    500: '#645fef',
    950: '#000000',
  },
}

SCSS

$custom: #645fef;
$custom-light: #9c8df5;
$custom-dark: #000000;

JSON

{
  "hex": "#645fef",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 239
  },
  "hsl": {
    "h": 242.083,
    "s": 81.818,
    "l": 65.49
  },
  "oklch": {
    "l": 0.57269,
    "c": 0.20984,
    "h": 279
  },
  "luminance": 0.17126
}

Semantic roles & 50–950 ramp

primary

#645FEF

secondary

#EBEDBD

accent

#DE07D7

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645FEF

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

Preview Lab → · Contrast checker → · Palette generator →