#646AE9#646AE9

#646AE9 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.7% C 0.188 H 276.9°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#646AE9
RGB	rgb(100, 106, 233)
HSL	hsl(237, 75%, 65%)
HSV	hsv(237, 57%, 91%)
CMYK	cmyk(57.1%, 54.5%, 0%, 8.6%)
CIE-LAB	lab(50.57, 33.91, -65.24)
CIE-LCH	lch(50.57, 73.53, 297.46°)
OKLab	oklab(58.73% 0.0225 -0.187)
OKLCH	oklch(58.73% 0.188 276.9)
XYZ	xyz(25.1128, 18.8988, 79.3995)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AE9 #E9E364

analogous

#64ADE9 #646AE9 #A064E9

triadic

#646AE9 #E9646A #6AE964

tetradic

#646AE9 #E964AD #E9E364 #64E9A0

square

#646AE9 #E964AD #E9E364 #64E9A0

split-complementary

#646AE9 #E9A064 #ADE964

monochromatic

#1A21B8 #2E36E1 #646AE9 #9A9EF1 #CFD1F8

Accessibility & contrast

On white

4.39

#646AE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#646AE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AE9

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AE9	#FFFFFF	#000000	##000000
##646AE9	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D7EED

Deuteranopia (green-blind)

#0073E6

Tritanopia (blue-blind)

#0B889F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646ae9;
/* rgb */ color: rgb(100, 106, 233);
/* oklch */ color: oklch(58.7% 0.188 276.9);

Tailwind

colors: {
  custom: {
    50: '#9b94f1',
    500: '#646ae9',
    950: '#000000',
  },
}

SCSS

$custom: #646ae9;
$custom-light: #9b94f1;
$custom-dark: #000000;

JSON

{
  "hex": "#646ae9",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 233
  },
  "hsl": {
    "h": 237.293,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.58729,
    "c": 0.18836,
    "h": 276.9
  },
  "luminance": 0.18901
}

Semantic roles & 50–950 ramp

primary

#646AE9

secondary

#EBE9BE

accent

#CE0ED7

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646AE9

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

Preview Lab → · Contrast checker → · Palette generator →