#645FA7#645FA7

#645FA7 is a mid, moderate blue. Relative luminance 0.137; OKLCH L 52.3% C 0.111 H 285.0°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#645FA7
RGB	rgb(100, 95, 167)
HSL	hsl(244, 29%, 51%)
HSV	hsv(244, 43%, 65%)
CMYK	cmyk(40.1%, 43.1%, 0%, 34.5%)
CIE-LAB	lab(43.78, 20.26, -38.16)
CIE-LCH	lch(43.78, 43.20, 297.96°)
OKLab	oklab(52.32% 0.0289 -0.1076)
OKLCH	oklch(52.32% 0.111 285)
XYZ	xyz(16.3208, 13.6832, 38.3329)
Luminance	0.1368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FA7 #A2A75F

analogous

#5F7EA7 #645FA7 #885FA7

triadic

#645FA7 #A7645F #5FA764

tetradic

#645FA7 #A75F7E #A2A75F #5FA788

square

#645FA7 #A75F7E #A2A75F #5FA788

split-complementary

#645FA7 #A7885F #7EA75F

monochromatic

#34325A #4B4782 #645FA7 #8A86BD #B1AED2

Accessibility & contrast

On white

5.62

#645FA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#645FA7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FA7

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FA7	#FFFFFF	#000000	##FFFFFF
##645FA7	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#466AAA

Deuteranopia (green-blind)

#4465A5

Tritanopia (blue-blind)

#516D7B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645fa7;
/* rgb */ color: rgb(100, 95, 167);
/* oklch */ color: oklch(52.3% 0.111 285.0);

Tailwind

colors: {
  custom: {
    50: '#938cc1',
    500: '#645fa7',
    950: '#000000',
  },
}

SCSS

$custom: #645fa7;
$custom-light: #938cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#645fa7",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 167
  },
  "hsl": {
    "h": 244.167,
    "s": 29.032,
    "l": 51.373
  },
  "oklch": {
    "l": 0.52323,
    "c": 0.11138,
    "h": 285
  },
  "luminance": 0.13684
}

Semantic roles & 50–950 ramp

primary

#645FA7

secondary

#BFC1A1

accent

#C562BE

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645FA7

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

Preview Lab → · Contrast checker → · Palette generator →