#646BEE#646BEE

#646BEE is a mid, vivid blue. Relative luminance 0.194; OKLCH L 59.3% C 0.194 H 276.4°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#646BEE
RGB	rgb(100, 107, 238)
HSL	hsl(237, 80%, 66%)
HSV	hsv(237, 58%, 93%)
CMYK	cmyk(58%, 55%, 0%, 6.7%)
CIE-LAB	lab(51.15, 34.90, -67.11)
CIE-LCH	lch(51.15, 75.64, 297.48°)
OKLab	oklab(59.27% 0.0217 -0.1925)
OKLCH	oklch(59.27% 0.194 276.4)
XYZ	xyz(25.9409, 19.3959, 83.2491)
Luminance	0.1940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BEE #EEE764

analogous

#64B0EE #646BEE #A264EE

triadic

#646BEE #EE646B #6BEE64

tetradic

#646BEE #EE64B0 #EEE764 #64EEA2

square

#646BEE #EE64B0 #EEE764 #64EEA2

split-complementary

#646BEE #EEA264 #B0EE64

monochromatic

#151EC2 #2D36E8 #646BEE #9BA0F4 #D2D4FA

Accessibility & contrast

On white

4.30

#646BEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#646BEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BEE

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BEE	#FFFFFF	#000000	##000000
##646BEE	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0080F2

Deuteranopia (green-blind)

#0074EB

Tritanopia (blue-blind)

#008AA2

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646bee;
/* rgb */ color: rgb(100, 107, 238);
/* oklch */ color: oklch(59.3% 0.194 276.4);

Tailwind

colors: {
  custom: {
    50: '#9c95f4',
    500: '#646bee',
    950: '#000000',
  },
}

SCSS

$custom: #646bee;
$custom-light: #9c95f4;
$custom-dark: #000000;

JSON

{
  "hex": "#646bee",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 238
  },
  "hsl": {
    "h": 236.957,
    "s": 80.233,
    "l": 66.275
  },
  "oklch": {
    "l": 0.59268,
    "c": 0.19371,
    "h": 276.4
  },
  "luminance": 0.19398
}

Semantic roles & 50–950 ramp

primary

#646BEE

secondary

#EDEBC0

accent

#D209DD

background

#FAF9FF

surface

#F4F1FE

border

#CECBD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646BEE

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

Preview Lab → · Contrast checker → · Palette generator →