#646AFF#646AFF

#646AFF is a mid, highly saturated blue. Relative luminance 0.202; OKLCH L 60.4% C 0.217 H 276.0°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#646AFF
RGB	rgb(100, 106, 255)
HSL	hsl(238, 100%, 70%)
HSV	hsv(238, 61%, 100%)
CMYK	cmyk(60.8%, 58.4%, 0%, 0%)
CIE-LAB	lab(52.10, 40.94, -75.02)
CIE-LCH	lch(52.10, 85.46, 298.62°)
OKLab	oklab(60.35% 0.0227 -0.2158)
OKLCH	oklch(60.35% 0.217 276)
XYZ	xyz(28.4537, 20.2351, 96.9947)
Luminance	0.2024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AFF #FFF964

analogous

#64B8FF #646AFF #AB64FF

triadic

#646AFF #FF646A #6AFF64

tetradic

#646AFF #FF64B8 #FFF964 #64FFAB

square

#646AFF #FF64B8 #FFF964 #64FFAB

split-complementary

#646AFF #FFAB64 #B8FF64

monochromatic

#0009E9 #272FFF #646AFF #A1A5FF #DEE0FF

Accessibility & contrast

On white

4.16

#646AFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#646AFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AFF

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AFF	#FFFFFF	#000000	##000000
##646AFF	1.00	4.16	5.05	5.05
#FFFFFF	4.16	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)

#0083FF

Deuteranopia (green-blind)

#0076FC

Tritanopia (blue-blind)

#008EAA

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646aff;
/* rgb */ color: rgb(100, 106, 255);
/* oklch */ color: oklch(60.4% 0.217 276.0);

Tailwind

colors: {
  custom: {
    50: '#9e94ff',
    500: '#646aff',
    950: '#000000',
  },
}

SCSS

$custom: #646aff;
$custom-light: #9e94ff;
$custom-dark: #000000;

JSON

{
  "hex": "#646aff",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 255
  },
  "hsl": {
    "h": 237.677,
    "s": 100,
    "l": 69.608
  },
  "oklch": {
    "l": 0.60353,
    "c": 0.21695,
    "h": 276
  },
  "luminance": 0.20237
}

Semantic roles & 50–950 ramp

primary

#646AFF

secondary

#F6F4C9

accent

#DD00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646AFF

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

Preview Lab → · Contrast checker → · Palette generator →