#646CD7#646CD7

#646CD7 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.9% C 0.161 H 276.9°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#646CD7
RGB	rgb(100, 108, 215)
HSL	hsl(236, 59%, 62%)
HSV	hsv(236, 53%, 84%)
CMYK	cmyk(53.5%, 49.8%, 0%, 15.7%)
CIE-LAB	lab(49.91, 26.96, -56.15)
CIE-LCH	lch(49.91, 62.29, 295.65°)
OKLab	oklab(57.86% 0.0193 -0.1602)
OKLCH	oklch(57.86% 0.161 276.9)
XYZ	xyz(22.8799, 18.3393, 66.6110)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CD7 #D7CF64

analogous

#64A6D7 #646CD7 #9664D7

triadic

#646CD7 #D7646C #6CD764

tetradic

#646CD7 #D764A6 #D7CF64 #64D796

square

#646CD7 #D764A6 #D7CF64 #64D796

split-complementary

#646CD7 #D79664 #A6D764

monochromatic

#282F99 #343ECA #646CD7 #959AE4 #C5C8F0

Accessibility & contrast

On white

4.50

#646CD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#646CD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CD7

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CD7	#FFFFFF	#000000	##000000
##646CD7	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#377CDB

Deuteranopia (green-blind)

#2872D5

Tritanopia (blue-blind)

#2E8497

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646cd7;
/* rgb */ color: rgb(100, 108, 215);
/* oklch */ color: oklch(57.9% 0.161 276.9);

Tailwind

colors: {
  custom: {
    50: '#9896e4',
    500: '#646cd7',
    950: '#000000',
  },
}

SCSS

$custom: #646cd7;
$custom-light: #9896e4;
$custom-dark: #000000;

JSON

{
  "hex": "#646cd7",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 215
  },
  "hsl": {
    "h": 235.826,
    "s": 58.974,
    "l": 61.765
  },
  "oklch": {
    "l": 0.57862,
    "c": 0.16141,
    "h": 276.9
  },
  "luminance": 0.18341
}

Semantic roles & 50–950 ramp

primary

#646CD7

secondary

#E1DEB6

accent

#BB1FC7

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #646CD7

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

Preview Lab → · Contrast checker → · Palette generator →