#645EA6#645EA6

#645EA6 is a mid, moderate blue. Relative luminance 0.135; OKLCH L 52.1% C 0.111 H 285.6°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#645EA6
RGB	rgb(100, 94, 166)
HSL	hsl(245, 29%, 51%)
HSV	hsv(245, 43%, 65%)
CMYK	cmyk(39.8%, 43.4%, 0%, 34.9%)
CIE-LAB	lab(43.46, 20.59, -38.07)
CIE-LCH	lch(43.46, 43.28, 298.40°)
OKLab	oklab(52.07% 0.0301 -0.1073)
OKLCH	oklch(52.07% 0.111 285.6)
XYZ	xyz(16.1392, 13.4673, 37.8181)
Luminance	0.1347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EA6 #A0A65E

analogous

#5E7CA6 #645EA6 #885EA6

triadic

#645EA6 #A6645E #5EA664

tetradic

#645EA6 #A65E7C #A0A65E #5EA688

square

#645EA6 #A65E7C #A0A65E #5EA688

split-complementary

#645EA6 #A6885E #7CA65E

monochromatic

#343159 #4C4780 #645EA6 #8A85BC #B0ADD2

Accessibility & contrast

On white

5.69

#645EA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#645EA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EA6

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EA6	#FFFFFF	#000000	##FFFFFF
##645EA6	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4569A9

Deuteranopia (green-blind)

#4365A4

Tritanopia (blue-blind)

#516C7A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645ea6;
/* rgb */ color: rgb(100, 94, 166);
/* oklch */ color: oklch(52.1% 0.111 285.6);

Tailwind

colors: {
  custom: {
    50: '#938bc1',
    500: '#645ea6',
    950: '#000000',
  },
}

SCSS

$custom: #645ea6;
$custom-light: #938bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#645ea6",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 166
  },
  "hsl": {
    "h": 245,
    "s": 28.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.52065,
    "c": 0.11144,
    "h": 285.6
  },
  "luminance": 0.13468
}

Semantic roles & 50–950 ramp

primary

#645EA6

secondary

#BDC0A0

accent

#C563BD

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645EA6

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

Preview Lab → · Contrast checker → · Palette generator →