#646CF9#646CF9

#646CF9 is a mid, highly saturated blue. Relative luminance 0.203; OKLCH L 60.2% C 0.207 H 275.8°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#646CF9
RGB	rgb(100, 108, 249)
HSL	hsl(237, 93%, 68%)
HSV	hsv(237, 60%, 98%)
CMYK	cmyk(59.8%, 56.6%, 0%, 2.4%)
CIE-LAB	lab(52.14, 37.83, -71.63)
CIE-LCH	lch(52.14, 81.00, 297.84°)
OKLab	oklab(60.25% 0.021 -0.2058)
OKLCH	oklch(60.25% 0.207 275.8)
XYZ	xyz(27.7114, 20.2718, 92.0567)
Luminance	0.2027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CF9 #F9F164

analogous

#64B6F9 #646CF9 #A764F9

triadic

#646CF9 #F9646C #6CF964

tetradic

#646CF9 #F964B6 #F9F164 #64F9A7

square

#646CF9 #F964B6 #F9F164 #64F9A7

split-complementary

#646CF9 #F9A764 #B6F964

monochromatic

#0814DA #2934F7 #646CF9 #9FA4FB #DADCFE

Accessibility & contrast

On white

4.15

#646CF9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#646CF9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CF9

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CF9	#FFFFFF	#000000	##000000
##646CF9	1.00	4.15	5.05	5.05
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0083FE

Deuteranopia (green-blind)

#0076F6

Tritanopia (blue-blind)

#008EA8

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646cf9;
/* rgb */ color: rgb(100, 108, 249);
/* oklch */ color: oklch(60.2% 0.207 275.8);

Tailwind

colors: {
  custom: {
    50: '#9d96fc',
    500: '#646cf9',
    950: '#000000',
  },
}

SCSS

$custom: #646cf9;
$custom-light: #9d96fc;
$custom-dark: #000000;

JSON

{
  "hex": "#646cf9",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 249
  },
  "hsl": {
    "h": 236.779,
    "s": 92.547,
    "l": 68.431
  },
  "oklch": {
    "l": 0.60249,
    "c": 0.20683,
    "h": 275.8
  },
  "luminance": 0.20274
}

Semantic roles & 50–950 ramp

primary

#646CF9

secondary

#F3F0C6

accent

#D900E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646CF9

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

Preview Lab → · Contrast checker → · Palette generator →