#645FDD#645FDD

#645FDD is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.9% C 0.187 H 280.3°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#645FDD
RGB	rgb(100, 95, 221)
HSL	hsl(242, 65%, 62%)
HSV	hsv(242, 57%, 87%)
CMYK	cmyk(54.8%, 57%, 0%, 13.3%)
CIE-LAB	lab(47.12, 36.74, -64.05)
CIE-LCH	lch(47.12, 73.84, 299.84°)
OKLab	oklab(55.91% 0.0333 -0.1836)
OKLCH	oklch(55.91% 0.187 280.3)
XYZ	xyz(22.3948, 16.1128, 70.3226)
Luminance	0.1611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FDD #D8DD5F

analogous

#5F99DD #645FDD #A35FDD

triadic

#645FDD #DD645F #5FDD64

tetradic

#645FDD #DD5F99 #D8DD5F #5FDDA3

square

#645FDD #DD5F99 #D8DD5F #5FDDA3

split-complementary

#645FDD #DDA35F #99DD5F

monochromatic

#2722A0 #332DD2 #645FDD #9591E8 #C6C4F2

Accessibility & contrast

On white

4.97

#645FDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#645FDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FDD

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FDD	#FFFFFF	#000000	##FFFFFF
##645FDD	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E1

Deuteranopia (green-blind)

#006BDA

Tritanopia (blue-blind)

#297C95

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645fdd;
/* rgb */ color: rgb(100, 95, 221);
/* oklch */ color: oklch(55.9% 0.187 280.3);

Tailwind

colors: {
  custom: {
    50: '#9a8ce8',
    500: '#645fdd',
    950: '#000000',
  },
}

SCSS

$custom: #645fdd;
$custom-light: #9a8ce8;
$custom-dark: #000000;

JSON

{
  "hex": "#645fdd",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 221
  },
  "hsl": {
    "h": 242.381,
    "s": 64.948,
    "l": 61.961
  },
  "oklch": {
    "l": 0.55907,
    "c": 0.18656,
    "h": 280.3
  },
  "luminance": 0.16114
}

Semantic roles & 50–950 ramp

primary

#645FDD

secondary

#E1E3B5

accent

#CD19C6

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645FDD

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

Preview Lab → · Contrast checker → · Palette generator →