#645EF8#645EF8

#645EF8 is a mid, highly saturated blue. Relative luminance 0.175; OKLCH L 57.8% C 0.222 H 278.6°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#645EF8
RGB	rgb(100, 94, 248)
HSL	hsl(242, 92%, 67%)
HSV	hsv(242, 62%, 97%)
CMYK	cmyk(59.7%, 62.1%, 0%, 2.7%)
CIE-LAB	lab(48.87, 45.77, -76.39)
CIE-LCH	lch(48.87, 89.05, 300.93°)
OKLab	oklab(57.82% 0.0332 -0.2199)
OKLCH	oklch(57.82% 0.222 278.6)
XYZ	xyz(26.1961, 17.4901, 90.7842)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EF8 #F2F85E

analogous

#5EA5F8 #645EF8 #B15EF8

triadic

#645EF8 #F8645E #5EF864

tetradic

#645EF8 #F85EA5 #F2F85E #5EF8B1

square

#645EF8 #F85EA5 #F2F85E #5EF8B1

split-complementary

#645EF8 #F8B15E #A5F85E

monochromatic

#1109D2 #2C23F5 #645EF8 #9C99FB #D5D3FD

Accessibility & contrast

On white

4.67

#645EF8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#645EF8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #645EF8

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EF8	#FFFFFF	#000000	##FFFFFF
##645EF8	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFD

Deuteranopia (green-blind)

#006EF5

Tritanopia (blue-blind)

#0085A2

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #645ef8;
/* rgb */ color: rgb(100, 94, 248);
/* oklch */ color: oklch(57.8% 0.222 278.6);

Tailwind

colors: {
  custom: {
    50: '#9e8cfc',
    500: '#645ef8',
    950: '#000000',
  },
}

SCSS

$custom: #645ef8;
$custom-light: #9e8cfc;
$custom-dark: #000000;

JSON

{
  "hex": "#645ef8",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 248
  },
  "hsl": {
    "h": 242.338,
    "s": 91.667,
    "l": 67.059
  },
  "oklch": {
    "l": 0.57815,
    "c": 0.22236,
    "h": 278.6
  },
  "luminance": 0.17492
}

Semantic roles & 50–950 ramp

primary

#645EF8

secondary

#EFF1C0

accent

#E600DD

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #645EF8

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

Preview Lab → · Contrast checker → · Palette generator →