#646EEF#646EEF

#646EEF is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.9% C 0.191 H 275.7°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#646EEF
RGB	rgb(100, 110, 239)
HSL	hsl(236, 81%, 66%)
HSV	hsv(236, 58%, 94%)
CMYK	cmyk(58.2%, 54%, 0%, 6.3%)
CIE-LAB	lab(51.94, 33.41, -66.39)
CIE-LCH	lch(51.94, 74.32, 296.72°)
OKLab	oklab(59.88% 0.0189 -0.1903)
OKLCH	oklch(59.88% 0.191 275.7)
XYZ	xyz(26.4064, 20.0912, 84.1311)
Luminance	0.2009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EEF #EFE564

analogous

#64B4EF #646EEF #A064EF

triadic

#646EEF #EF646E #6EEF64

tetradic

#646EEF #EF64B4 #EFE564 #64EFA0

square

#646EEF #EF64B4 #EFE564 #64EFA0

split-complementary

#646EEF #EFA064 #B4EF64

monochromatic

#1421C4 #2D3AE9 #646EEF #9BA2F5 #D3D6FA

Accessibility & contrast

On white

4.18

#646EEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#646EEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EEF

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EEF	#FFFFFF	#000000	##000000
##646EEF	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1382F3

Deuteranopia (green-blind)

#0076EC

Tritanopia (blue-blind)

#008CA4

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646eef;
/* rgb */ color: rgb(100, 110, 239);
/* oklch */ color: oklch(59.9% 0.191 275.7);

Tailwind

colors: {
  custom: {
    50: '#9c97f5',
    500: '#646eef',
    950: '#000000',
  },
}

SCSS

$custom: #646eef;
$custom-light: #9c97f5;
$custom-dark: #000000;

JSON

{
  "hex": "#646eef",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 239
  },
  "hsl": {
    "h": 235.683,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.59882,
    "c": 0.19126,
    "h": 275.7
  },
  "luminance": 0.20093
}

Semantic roles & 50–950 ramp

primary

#646EEF

secondary

#EEEBC1

accent

#CE08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646EEF

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

Preview Lab → · Contrast checker → · Palette generator →