#645EEF#645EEF

#645EEF is a mid, highly saturated blue. Relative luminance 0.169; OKLCH L 57.1% C 0.211 H 279.2°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#645EEF
RGB	rgb(100, 94, 239)
HSL	hsl(242, 82%, 65%)
HSV	hsv(242, 61%, 94%)
CMYK	cmyk(58.2%, 60.7%, 0%, 6.3%)
CIE-LAB	lab(48.19, 42.96, -72.47)
CIE-LCH	lch(48.19, 84.25, 300.66°)
OKLab	oklab(57.1% 0.0337 -0.2083)
OKLCH	oklch(57.1% 0.211 279.2)
XYZ	xyz(24.8333, 16.9450, 83.6067)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EEF #E9EF5E

analogous

#5EA0EF #645EEF #AD5EEF

triadic

#645EEF #EF645E #5EEF64

tetradic

#645EEF #EF5EA0 #E9EF5E #5EEFAD

square

#645EEF #EF5EA0 #E9EF5E #5EEFAD

split-complementary

#645EEF #EFAD5E #A0EF5E

monochromatic

#1A13C0 #2E26E9 #645EEF #9A96F5 #CFCDFA

Accessibility & contrast

On white

4.78

#645EEF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#645EEF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EEF

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EEF	#FFFFFF	#000000	##FFFFFF
##645EEF	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078F4

Deuteranopia (green-blind)

#006DEC

Tritanopia (blue-blind)

#00829E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #645eef;
/* rgb */ color: rgb(100, 94, 239);
/* oklch */ color: oklch(57.1% 0.211 279.2);

Tailwind

colors: {
  custom: {
    50: '#9d8cf5',
    500: '#645eef',
    950: '#000000',
  },
}

SCSS

$custom: #645eef;
$custom-light: #9d8cf5;
$custom-dark: #000000;

JSON

{
  "hex": "#645eef",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 239
  },
  "hsl": {
    "h": 242.483,
    "s": 81.921,
    "l": 65.294
  },
  "oklch": {
    "l": 0.57103,
    "c": 0.21105,
    "h": 279.2
  },
  "luminance": 0.16947
}

Semantic roles & 50–950 ramp

primary

#645EEF

secondary

#EBEDBC

accent

#DE07D5

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645EEF

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

Preview Lab → · Contrast checker → · Palette generator →