#645EEA#645EEA

#645EEA is a mid, highly saturated blue. Relative luminance 0.167; OKLCH L 56.7% C 0.205 H 279.5°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#645EEA
RGB	rgb(100, 94, 234)
HSL	hsl(243, 77%, 64%)
HSV	hsv(243, 60%, 92%)
CMYK	cmyk(57.3%, 59.8%, 0%, 8.2%)
CIE-LAB	lab(47.82, 41.40, -70.26)
CIE-LCH	lch(47.82, 81.55, 300.51°)
OKLab	oklab(56.72% 0.0339 -0.2018)
OKLCH	oklch(56.72% 0.205 279.5)
XYZ	xyz(24.1048, 16.6536, 79.7702)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EEA #E4EA5E

analogous

#5E9EEA #645EEA #AA5EEA

triadic

#645EEA #EA645E #5EEA64

tetradic

#645EEA #EA5E9E #E4EA5E #5EEAAA

square

#645EEA #EA5E9E #E4EA5E #5EEAAA

split-complementary

#645EEA #EAAA5E #9EEA5E

monochromatic

#1F18B6 #3028E3 #645EEA #9894F1 #CCCAF8

Accessibility & contrast

On white

4.85

#645EEA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#645EEA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EEA

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EEA	#FFFFFF	#000000	##FFFFFF
##645EEA	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077EF

Deuteranopia (green-blind)

#006CE7

Tritanopia (blue-blind)

#0E809B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645eea;
/* rgb */ color: rgb(100, 94, 234);
/* oklch */ color: oklch(56.7% 0.205 279.5);

Tailwind

colors: {
  custom: {
    50: '#9c8cf2',
    500: '#645eea',
    950: '#000000',
  },
}

SCSS

$custom: #645eea;
$custom-light: #9c8cf2;
$custom-dark: #000000;

JSON

{
  "hex": "#645eea",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 234
  },
  "hsl": {
    "h": 242.571,
    "s": 76.923,
    "l": 64.314
  },
  "oklch": {
    "l": 0.56715,
    "c": 0.20468,
    "h": 279.5
  },
  "luminance": 0.16655
}

Semantic roles & 50–950 ramp

primary

#645EEA

secondary

#E8EABA

accent

#D90CD0

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645EEA

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

Preview Lab → · Contrast checker → · Palette generator →