#646CCE#646CCE

#646CCE is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.3% C 0.149 H 277.1°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#646CCE
RGB	rgb(100, 108, 206)
HSL	hsl(235, 52%, 60%)
HSV	hsv(235, 51%, 81%)
CMYK	cmyk(51.5%, 47.6%, 0%, 19.2%)
CIE-LAB	lab(49.36, 24.12, -51.90)
CIE-LCH	lch(49.36, 57.23, 294.93°)
OKLab	oklab(57.28% 0.0184 -0.1477)
OKLCH	oklch(57.28% 0.149 277.1)
XYZ	xyz(21.7552, 17.8893, 60.6872)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CCE #CEC664

analogous

#64A1CE #646CCE #9164CE

triadic

#646CCE #CE646C #6CCE64

tetradic

#646CCE #CE64A1 #CEC664 #64CE91

square

#646CCE #CE64A1 #CEC664 #64CE91

split-complementary

#646CCE #CE9164 #A1CE64

monochromatic

#2C338C #3B44BA #646CCE #9298DD #C1C4EB

Accessibility & contrast

On white

4.59

#646CCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#646CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #646CCE

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CCE	#FFFFFF	#000000	##FFFFFF
##646CCE	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407AD2

Deuteranopia (green-blind)

#3571CC

Tritanopia (blue-blind)

#378193

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #646cce;
/* rgb */ color: rgb(100, 108, 206);
/* oklch */ color: oklch(57.3% 0.149 277.1);

Tailwind

colors: {
  custom: {
    50: '#9796dd',
    500: '#646cce',
    950: '#000000',
  },
}

SCSS

$custom: #646cce;
$custom-light: #9796dd;
$custom-dark: #000000;

JSON

{
  "hex": "#646cce",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 206
  },
  "hsl": {
    "h": 235.472,
    "s": 51.961,
    "l": 60
  },
  "oklch": {
    "l": 0.57276,
    "c": 0.14889,
    "h": 277.1
  },
  "luminance": 0.17891
}

Semantic roles & 50–950 ramp

primary

#646CCE

secondary

#DBD8B2

accent

#D14CDB

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646CCE

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

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