#646DEF#646DEF

#646DEF is a mid, vivid blue. Relative luminance 0.199; OKLCH L 59.7% C 0.193 H 275.9°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#646DEF
RGB	rgb(100, 109, 239)
HSL	hsl(236, 81%, 66%)
HSV	hsv(236, 58%, 94%)
CMYK	cmyk(58.2%, 54.4%, 0%, 6.3%)
CIE-LAB	lab(51.70, 34.02, -66.78)
CIE-LCH	lch(51.70, 74.94, 296.99°)
OKLab	oklab(59.7% 0.0198 -0.1915)
OKLCH	oklch(59.7% 0.193 275.9)
XYZ	xyz(26.2991, 19.8766, 84.0953)
Luminance	0.1988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DEF #EFE664

analogous

#64B3EF #646DEF #A164EF

triadic

#646DEF #EF646D #6DEF64

tetradic

#646DEF #EF64B3 #EFE664 #64EFA1

square

#646DEF #EF64B3 #EFE664 #64EFA1

split-complementary

#646DEF #EFA164 #B3EF64

monochromatic

#1420C4 #2D39E9 #646DEF #9BA1F5 #D3D6FA

Accessibility & contrast

On white

4.22

#646DEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#646DEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DEF

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DEF	#FFFFFF	#000000	##000000
##646DEF	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C81F3

Deuteranopia (green-blind)

#0075EC

Tritanopia (blue-blind)

#008BA3

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646def;
/* rgb */ color: rgb(100, 109, 239);
/* oklch */ color: oklch(59.7% 0.193 275.9);

Tailwind

colors: {
  custom: {
    50: '#9c96f5',
    500: '#646def',
    950: '#000000',
  },
}

SCSS

$custom: #646def;
$custom-light: #9c96f5;
$custom-dark: #000000;

JSON

{
  "hex": "#646def",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 239
  },
  "hsl": {
    "h": 236.115,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.597,
    "c": 0.19252,
    "h": 275.9
  },
  "luminance": 0.19879
}

Semantic roles & 50–950 ramp

primary

#646DEF

secondary

#EEEBC1

accent

#D008DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646DEF

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

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