#646EEC#646EEC

#646EEC is a mid, vivid blue. Relative luminance 0.199; OKLCH L 59.7% C 0.187 H 275.7°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#646EEC
RGB	rgb(100, 110, 236)
HSL	hsl(236, 78%, 66%)
HSV	hsv(236, 58%, 93%)
CMYK	cmyk(57.6%, 53.4%, 0%, 7.5%)
CIE-LAB	lab(51.74, 32.45, -65.03)
CIE-LCH	lch(51.74, 72.68, 296.52°)
OKLab	oklab(59.67% 0.0187 -0.1863)
OKLCH	oklch(59.67% 0.187 275.7)
XYZ	xyz(25.9669, 19.9154, 81.8163)
Luminance	0.1992 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EEC #ECE264

analogous

#64B2EC #646EEC #9E64EC

triadic

#646EEC #EC646E #6EEC64

tetradic

#646EEC #EC64B2 #ECE264 #64EC9E

square

#646EEC #EC64B2 #ECE264 #64EC9E

split-complementary

#646EEC #EC9E64 #B2EC64

monochromatic

#1724BE #2D3BE5 #646EEC #9BA1F3 #D1D4F9

Accessibility & contrast

On white

4.21

#646EEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#646EEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EEC

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EEC	#FFFFFF	#000000	##000000
##646EEC	1.00	4.21	4.98	4.98
#FFFFFF	4.21	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)

#1C81F0

Deuteranopia (green-blind)

#0076E9

Tritanopia (blue-blind)

#008BA2

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646eec;
/* rgb */ color: rgb(100, 110, 236);
/* oklch */ color: oklch(59.7% 0.187 275.7);

Tailwind

colors: {
  custom: {
    50: '#9b97f3',
    500: '#646eec',
    950: '#000000',
  },
}

SCSS

$custom: #646eec;
$custom-light: #9b97f3;
$custom-dark: #000000;

JSON

{
  "hex": "#646eec",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 236
  },
  "hsl": {
    "h": 235.588,
    "s": 78.161,
    "l": 65.882
  },
  "oklch": {
    "l": 0.5967,
    "c": 0.18728,
    "h": 275.7
  },
  "luminance": 0.19917
}

Semantic roles & 50–950 ramp

primary

#646EEC

secondary

#ECE9BF

accent

#CB0BDA

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646EEC

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

Preview Lab → · Contrast checker → · Palette generator →