#645B95#645B95

#645B95 is a mid, moderate blue. Relative luminance 0.124; OKLCH L 50.5% C 0.091 H 289.9°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#645B95
RGB	rgb(100, 91, 149)
HSL	hsl(249, 24%, 47%)
HSV	hsv(249, 39%, 58%)
CMYK	cmyk(32.9%, 38.9%, 0%, 41.6%)
CIE-LAB	lab(41.78, 17.60, -30.59)
CIE-LCH	lch(41.78, 35.29, 299.92°)
OKLab	oklab(50.5% 0.0309 -0.0855)
OKLCH	oklch(50.5% 0.091 289.9)
XYZ	xyz(14.4200, 12.3611, 30.0541)
Luminance	0.1236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645B95 #8C955B

analogous

#5B6F95 #645B95 #815B95

triadic

#645B95 #95645B #5B9564

tetradic

#645B95 #955B6F #8C955B #5B9581

square

#645B95 #955B6F #8C955B #5B9581

split-complementary

#645B95 #95815B #6F955B

monochromatic

#312D49 #4A446F #645B95 #857DB0 #A9A3C7

Accessibility & contrast

On white

6.05

#645B95 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#645B95 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645B95

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645B95	#FFFFFF	#000000	##FFFFFF
##645B95	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A6497

Deuteranopia (green-blind)

#4A6194

Tritanopia (blue-blind)

#586671

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #645b95;
/* rgb */ color: rgb(100, 91, 149);
/* oklch */ color: oklch(50.5% 0.091 289.9);

Tailwind

colors: {
  custom: {
    50: '#9289b4',
    500: '#645b95',
    950: '#000000',
  },
}

SCSS

$custom: #645b95;
$custom-light: #9289b4;
$custom-dark: #000000;

JSON

{
  "hex": "#645b95",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 149
  },
  "hsl": {
    "h": 249.31,
    "s": 24.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50502,
    "c": 0.09096,
    "h": 289.9
  },
  "luminance": 0.12361
}

Semantic roles & 50–950 ramp

primary

#645B95

secondary

#B0B597

accent

#C167B3

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0B11

muted

#7E7C80

Preview Lab

Preview with #645B95

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

Preview Lab → · Contrast checker → · Palette generator →