#646BAE#646BAE

#646BAE is a mid, moderate blue. Relative luminance 0.163; OKLCH L 55.2% C 0.104 H 277.9°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#646BAE
RGB	rgb(100, 107, 174)
HSL	hsl(234, 31%, 54%)
HSV	hsv(234, 43%, 68%)
CMYK	cmyk(42.5%, 38.5%, 0%, 31.8%)
CIE-LAB	lab(47.34, 14.92, -36.64)
CIE-LCH	lch(47.34, 39.56, 292.15°)
OKLab	oklab(55.16% 0.0143 -0.1031)
OKLCH	oklch(55.16% 0.104 277.9)
XYZ	xyz(18.1509, 16.2799, 42.2221)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BAE #AEA764

analogous

#6490AE #646BAE #8264AE

triadic

#646BAE #AE646B #6BAE64

tetradic

#646BAE #AE6490 #AEA764 #64AE82

square

#646BAE #AE6490 #AEA764 #64AE82

split-complementary

#646BAE #AE8264 #90AE64

monochromatic

#343964 #494F8C #646BAE #8C91C3 #B4B8D8

Accessibility & contrast

On white

4.93

#646BAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#646BAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646BAE

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BAE	#FFFFFF	#000000	##FFFFFF
##646BAE	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5373B1

Deuteranopia (green-blind)

#4E6EAC

Tritanopia (blue-blind)

#4C7884

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #646bae;
/* rgb */ color: rgb(100, 107, 174);
/* oklch */ color: oklch(55.2% 0.104 277.9);

Tailwind

colors: {
  custom: {
    50: '#9395c6',
    500: '#646bae',
    950: '#000000',
  },
}

SCSS

$custom: #646bae;
$custom-light: #9395c6;
$custom-dark: #000000;

JSON

{
  "hex": "#646bae",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 174
  },
  "hsl": {
    "h": 234.324,
    "s": 31.356,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55164,
    "c": 0.10408,
    "h": 277.9
  },
  "luminance": 0.16281
}

Semantic roles & 50–950 ramp

primary

#646BAE

secondary

#C7C4A7

accent

#BE60C8

background

#F9F9FC

surface

#F2F1F8

border

#CCCBD1

text

#0D0D13

muted

#7E7E82

Preview Lab

Preview with #646BAE

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

Preview Lab → · Contrast checker → · Palette generator →