#646D94#646D94

#646D94 is a mid, moderate blue. Relative luminance 0.158; OKLCH L 54.3% C 0.062 H 274.1°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#646D94
RGB	rgb(100, 109, 148)
HSL	hsl(229, 19%, 49%)
HSV	hsv(229, 32%, 58%)
CMYK	cmyk(32.4%, 26.4%, 0%, 42%)
CIE-LAB	lab(46.69, 6.25, -22.36)
CIE-LCH	lch(46.69, 23.22, 285.62°)
OKLab	oklab(54.27% 0.0045 -0.0619)
OKLCH	oklch(54.27% 0.062 274.1)
XYZ	xyz(16.0680, 15.7842, 30.2113)
Luminance	0.1578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D94 #948B64

analogous

#648594 #646D94 #736494

triadic

#646D94 #94646D #6D9464

tetradic

#646D94 #946485 #948B64 #649473

square

#646D94 #946485 #948B64 #649473

split-complementary

#646D94 #947364 #859464

monochromatic

#33374B #4B526F #646D94 #878EAE #ACB1C7

Accessibility & contrast

On white

5.05

#646D94 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#646D94 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D94

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D94	#FFFFFF	#000000	##FFFFFF
##646D94	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#617196

Deuteranopia (green-blind)

#5E6D93

Tritanopia (blue-blind)

#57747A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #646d94;
/* rgb */ color: rgb(100, 109, 148);
/* oklch */ color: oklch(54.3% 0.062 274.1);

Tailwind

colors: {
  custom: {
    50: '#9196b3',
    500: '#646d94',
    950: '#000000',
  },
}

SCSS

$custom: #646d94;
$custom-light: #9196b3;
$custom-dark: #000000;

JSON

{
  "hex": "#646d94",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 148
  },
  "hsl": {
    "h": 228.75,
    "s": 19.355,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54267,
    "c": 0.06207,
    "h": 274.1
  },
  "luminance": 0.15785
}

Semantic roles & 50–950 ramp

primary

#646D94

secondary

#B5B19E

accent

#AD6CBC

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0D11

muted

#7E7E80

Preview Lab

Preview with #646D94

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

Preview Lab → · Contrast checker → · Palette generator →