#645EA7#645EA7

#645EA7 is a mid, moderate blue. Relative luminance 0.135; OKLCH L 52.1% C 0.113 H 285.5°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#645EA7
RGB	rgb(100, 94, 167)
HSL	hsl(245, 29%, 51%)
HSV	hsv(245, 44%, 65%)
CMYK	cmyk(40.1%, 43.7%, 0%, 34.5%)
CIE-LAB	lab(43.51, 20.88, -38.58)
CIE-LCH	lch(43.51, 43.86, 298.42°)
OKLab	oklab(52.12% 0.0302 -0.1088)
OKLCH	oklch(52.12% 0.113 285.5)
XYZ	xyz(16.2313, 13.5042, 38.3031)
Luminance	0.1351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EA7 #A1A75E

analogous

#5E7CA7 #645EA7 #885EA7

triadic

#645EA7 #A7645E #5EA764

tetradic

#645EA7 #A75E7C #A1A75E #5EA788

square

#645EA7 #A75E7C #A1A75E #5EA788

split-complementary

#645EA7 #A7885E #7CA75E

monochromatic

#34315A #4B4781 #645EA7 #8A86BD #B0ADD2

Accessibility & contrast

On white

5.67

#645EA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#645EA7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EA7

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EA7	#FFFFFF	#000000	##FFFFFF
##645EA7	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4469AA

Deuteranopia (green-blind)

#4265A5

Tritanopia (blue-blind)

#516C7A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645ea7;
/* rgb */ color: rgb(100, 94, 167);
/* oklch */ color: oklch(52.1% 0.113 285.5);

Tailwind

colors: {
  custom: {
    50: '#938bc1',
    500: '#645ea7',
    950: '#000000',
  },
}

SCSS

$custom: #645ea7;
$custom-light: #938bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#645ea7",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 167
  },
  "hsl": {
    "h": 244.932,
    "s": 29.317,
    "l": 51.176
  },
  "oklch": {
    "l": 0.52124,
    "c": 0.11291,
    "h": 285.5
  },
  "luminance": 0.13505
}

Semantic roles & 50–950 ramp

primary

#645EA7

secondary

#BEC1A0

accent

#C662BD

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645EA7

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

Preview Lab → · Contrast checker → · Palette generator →