#645FD4#645FD4

#645FD4 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 55.3% C 0.175 H 280.9°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#645FD4
RGB	rgb(100, 95, 212)
HSL	hsl(243, 58%, 60%)
HSV	hsv(243, 55%, 83%)
CMYK	cmyk(52.8%, 55.2%, 0%, 16.9%)
CIE-LAB	lab(46.51, 33.94, -59.92)
CIE-LCH	lch(46.51, 68.86, 299.53°)
OKLab	oklab(55.26% 0.0332 -0.1714)
OKLCH	oklch(55.26% 0.175 280.9)
XYZ	xyz(21.2277, 15.6459, 64.1760)
Luminance	0.1565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD4 #CFD45F

analogous

#5F95D4 #645FD4 #9E5FD4

triadic

#645FD4 #D4645F #5FD464

tetradic

#645FD4 #D45F95 #CFD45F #5FD49E

square

#645FD4 #D45F95 #CFD45F #5FD49E

split-complementary

#645FD4 #D49E5F #95D45F

monochromatic

#2C2791 #3A34C2 #645FD4 #938FE1 #C1BFEE

Accessibility & contrast

On white

5.09

#645FD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#645FD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD4

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD4	#FFFFFF	#000000	##FFFFFF
##645FD4	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1073D8

Deuteranopia (green-blind)

#006AD2

Tritanopia (blue-blind)

#337A90

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645fd4;
/* rgb */ color: rgb(100, 95, 212);
/* oklch */ color: oklch(55.3% 0.175 280.9);

Tailwind

colors: {
  custom: {
    50: '#988ce2',
    500: '#645fd4',
    950: '#000000',
  },
}

SCSS

$custom: #645fd4;
$custom-light: #988ce2;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd4",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 212
  },
  "hsl": {
    "h": 242.564,
    "s": 57.635,
    "l": 60.196
  },
  "oklch": {
    "l": 0.55255,
    "c": 0.1746,
    "h": 280.9
  },
  "luminance": 0.15647
}

Semantic roles & 50–950 ramp

primary

#645FD4

secondary

#DCDEB1

accent

#C520BE

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #645FD4

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

Preview Lab → · Contrast checker → · Palette generator →