#646DE9#646DE9

#646DE9 is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.3% C 0.185 H 276.1°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#646DE9
RGB	rgb(100, 109, 233)
HSL	hsl(236, 75%, 65%)
HSV	hsv(236, 57%, 91%)
CMYK	cmyk(57.1%, 53.2%, 0%, 8.6%)
CIE-LAB	lab(51.30, 32.09, -64.06)
CIE-LCH	lch(51.30, 71.65, 296.61°)
OKLab	oklab(59.28% 0.0196 -0.1835)
OKLCH	oklch(59.28% 0.185 276.1)
XYZ	xyz(25.4274, 19.5280, 79.5043)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DE9 #E9E064

analogous

#64AFE9 #646DE9 #9E64E9

triadic

#646DE9 #E9646D #6DE964

tetradic

#646DE9 #E964AF #E9E064 #64E99E

square

#646DE9 #E964AF #E9E064 #64E99E

split-complementary

#646DE9 #E99E64 #AFE964

monochromatic

#1A25B8 #2E3BE1 #646DE9 #9A9FF1 #CFD2F8

Accessibility & contrast

On white

4.28

#646DE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#646DE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DE9

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DE9	#FFFFFF	#000000	##000000
##646DE9	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F80ED

Deuteranopia (green-blind)

#0075E6

Tritanopia (blue-blind)

#098AA1

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646de9;
/* rgb */ color: rgb(100, 109, 233);
/* oklch */ color: oklch(59.3% 0.185 276.1);

Tailwind

colors: {
  custom: {
    50: '#9b96f1',
    500: '#646de9',
    950: '#000000',
  },
}

SCSS

$custom: #646de9;
$custom-light: #9b96f1;
$custom-dark: #000000;

JSON

{
  "hex": "#646de9",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 233
  },
  "hsl": {
    "h": 235.94,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.59276,
    "c": 0.18455,
    "h": 276.1
  },
  "luminance": 0.1953
}

Semantic roles & 50–950 ramp

primary

#646DE9

secondary

#EBE8BE

accent

#CA0ED7

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646DE9

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

Preview Lab → · Contrast checker → · Palette generator →