#646EE9#646EE9

#646EE9 is a mid, vivid blue. Relative luminance 0.197; OKLCH L 59.5% C 0.183 H 275.8°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#646EE9
RGB	rgb(100, 110, 233)
HSL	hsl(235, 75%, 65%)
HSV	hsv(235, 57%, 91%)
CMYK	cmyk(57.1%, 52.8%, 0%, 8.6%)
CIE-LAB	lab(51.54, 31.49, -63.67)
CIE-LCH	lch(51.54, 71.03, 296.31°)
OKLab	oklab(59.46% 0.0186 -0.1823)
OKLCH	oklch(59.46% 0.183 275.8)
XYZ	xyz(25.5347, 19.7425, 79.5401)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EE9 #E9DF64

analogous

#64B0E9 #646EE9 #9D64E9

triadic

#646EE9 #E9646E #6EE964

tetradic

#646EE9 #E964B0 #E9DF64 #64E99D

square

#646EE9 #E964B0 #E9DF64 #64E99D

split-complementary

#646EE9 #E99D64 #B0E964

monochromatic

#1A26B8 #2E3CE1 #646EE9 #9AA0F1 #CFD2F8

Accessibility & contrast

On white

4.24

#646EE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#646EE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EE9

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EE9	#FFFFFF	#000000	##000000
##646EE9	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2381ED

Deuteranopia (green-blind)

#0075E6

Tritanopia (blue-blind)

#088AA1

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646ee9;
/* rgb */ color: rgb(100, 110, 233);
/* oklch */ color: oklch(59.5% 0.183 275.8);

Tailwind

colors: {
  custom: {
    50: '#9b97f1',
    500: '#646ee9',
    950: '#000000',
  },
}

SCSS

$custom: #646ee9;
$custom-light: #9b97f1;
$custom-dark: #000000;

JSON

{
  "hex": "#646ee9",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 233
  },
  "hsl": {
    "h": 235.489,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.5946,
    "c": 0.18327,
    "h": 275.8
  },
  "luminance": 0.19744
}

Semantic roles & 50–950 ramp

primary

#646EE9

secondary

#EBE7BE

accent

#C80ED7

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646EE9

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

Preview Lab → · Contrast checker → · Palette generator →