#646CE9#646CE9

#646CE9 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 59.1% C 0.186 H 276.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#646CE9
RGB	rgb(100, 108, 233)
HSL	hsl(236, 75%, 65%)
HSV	hsv(236, 57%, 91%)
CMYK	cmyk(57.1%, 53.6%, 0%, 8.6%)
CIE-LAB	lab(51.05, 32.70, -64.46)
CIE-LCH	lch(51.05, 72.28, 296.90°)
OKLab	oklab(59.09% 0.0206 -0.1847)
OKLCH	oklch(59.09% 0.186 276.3)
XYZ	xyz(25.3213, 19.3158, 79.4690)
Luminance	0.1932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CE9 #E9E164

analogous

#64AEE9 #646CE9 #9E64E9

triadic

#646CE9 #E9646C #6CE964

tetradic

#646CE9 #E964AE #E9E164 #64E99E

square

#646CE9 #E964AE #E9E164 #64E99E

split-complementary

#646CE9 #E99E64 #AEE964

monochromatic

#1A24B8 #2E39E1 #646CE9 #9A9FF1 #CFD2F8

Accessibility & contrast

On white

4.32

#646CE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#646CE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CE9

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CE9	#FFFFFF	#000000	##000000
##646CE9	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A7FED

Deuteranopia (green-blind)

#0074E6

Tritanopia (blue-blind)

#0989A0

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646ce9;
/* rgb */ color: rgb(100, 108, 233);
/* oklch */ color: oklch(59.1% 0.186 276.3);

Tailwind

colors: {
  custom: {
    50: '#9b96f1',
    500: '#646ce9',
    950: '#000000',
  },
}

SCSS

$custom: #646ce9;
$custom-light: #9b96f1;
$custom-dark: #000000;

JSON

{
  "hex": "#646ce9",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 233
  },
  "hsl": {
    "h": 236.391,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.59093,
    "c": 0.18582,
    "h": 276.3
  },
  "luminance": 0.19318
}

Semantic roles & 50–950 ramp

primary

#646CE9

secondary

#EBE8BE

accent

#CB0ED7

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646CE9

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

Preview Lab → · Contrast checker → · Palette generator →