#645FE9#645FE9

#645FE9 is a mid, highly saturated blue. Relative luminance 0.168; OKLCH L 56.8% C 0.202 H 279.4°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#645FE9
RGB	rgb(100, 95, 233)
HSL	hsl(242, 76%, 64%)
HSV	hsv(242, 59%, 91%)
CMYK	cmyk(57.1%, 59.2%, 0%, 8.6%)
CIE-LAB	lab(47.98, 40.50, -69.45)
CIE-LCH	lch(47.98, 80.39, 300.25°)
OKLab	oklab(56.81% 0.0331 -0.1994)
OKLCH	oklch(56.81% 0.202 279.4)
XYZ	xyz(24.0511, 16.7753, 79.0456)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FE9 #E4E95F

analogous

#5F9FE9 #645FE9 #A95FE9

triadic

#645FE9 #E9645F #5FE964

tetradic

#645FE9 #E95F9F #E4E95F #5FE9A9

square

#645FE9 #E95F9F #E4E95F #5FE9A9

split-complementary

#645FE9 #E9A95F #9FE95F

monochromatic

#1F19B5 #3029E2 #645FE9 #9895F0 #CCCBF8

Accessibility & contrast

On white

4.82

#645FE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#645FE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FE9

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FE9	#FFFFFF	#000000	##FFFFFF
##645FE9	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077EE

Deuteranopia (green-blind)

#006CE6

Tritanopia (blue-blind)

#11809B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #645fe9;
/* rgb */ color: rgb(100, 95, 233);
/* oklch */ color: oklch(56.8% 0.202 279.4);

Tailwind

colors: {
  custom: {
    50: '#9c8df1',
    500: '#645fe9',
    950: '#000000',
  },
}

SCSS

$custom: #645fe9;
$custom-light: #9c8df1;
$custom-dark: #000000;

JSON

{
  "hex": "#645fe9",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 233
  },
  "hsl": {
    "h": 242.174,
    "s": 75.824,
    "l": 64.314
  },
  "oklch": {
    "l": 0.56807,
    "c": 0.20217,
    "h": 279.4
  },
  "luminance": 0.16777
}

Semantic roles & 50–950 ramp

primary

#645FE9

secondary

#E8EABA

accent

#D80DD1

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645FE9

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

Preview Lab → · Contrast checker → · Palette generator →