#645DFA#645DFA

#645DFA is a mid, highly saturated blue. Relative luminance 0.174; OKLCH L 57.8% C 0.226 H 278.6°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#645DFA
RGB	rgb(100, 93, 250)
HSL	hsl(243, 94%, 67%)
HSV	hsv(243, 63%, 98%)
CMYK	cmyk(60%, 62.8%, 0%, 2%)
CIE-LAB	lab(48.81, 46.97, -77.61)
CIE-LCH	lch(48.81, 90.72, 301.18°)
OKLab	oklab(57.82% 0.0339 -0.2234)
OKLCH	oklch(57.82% 0.226 278.6)
XYZ	xyz(26.4197, 17.4382, 92.3976)
Luminance	0.1744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DFA #F3FA5D

analogous

#5DA5FA #645DFA #B25DFA

triadic

#645DFA #FA645D #5DFA64

tetradic

#645DFA #FA5DA5 #F3FA5D #5DFAB2

square

#645DFA #FA5DA5 #F3FA5D #5DFAB2

split-complementary

#645DFA #FAB25D #A5FA5D

monochromatic

#1007D6 #2B22F8 #645DFA #9D98FC #D6D4FE

Accessibility & contrast

On white

4.68

#645DFA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#645DFA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DFA

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DFA	#FFFFFF	#000000	##FFFFFF
##645DFA	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFF

Deuteranopia (green-blind)

#006EF7

Tritanopia (blue-blind)

#0085A3

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #645dfa;
/* rgb */ color: rgb(100, 93, 250);
/* oklch */ color: oklch(57.8% 0.226 278.6);

Tailwind

colors: {
  custom: {
    50: '#9e8bfd',
    500: '#645dfa',
    950: '#000000',
  },
}

SCSS

$custom: #645dfa;
$custom-light: #9e8bfd;
$custom-dark: #000000;

JSON

{
  "hex": "#645dfa",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 250
  },
  "hsl": {
    "h": 242.675,
    "s": 94.012,
    "l": 67.255
  },
  "oklch": {
    "l": 0.57816,
    "c": 0.226,
    "h": 278.6
  },
  "luminance": 0.1744
}

Semantic roles & 50–950 ramp

primary

#645DFA

secondary

#F0F2C1

accent

#E600DB

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #645DFA

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

Preview Lab → · Contrast checker → · Palette generator →