#647BE7#647BE7

#647BE7 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.8% C 0.164 H 271.8°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#647BE7
RGB	rgb(100, 123, 231)
HSL	hsl(229, 73%, 65%)
HSV	hsv(229, 57%, 91%)
CMYK	cmyk(56.7%, 46.8%, 0%, 9.4%)
CIE-LAB	lab(54.70, 22.95, -57.47)
CIE-LCH	lch(54.70, 61.88, 291.76°)
OKLab	oklab(61.81% 0.0051 -0.164)
OKLCH	oklch(61.81% 0.164 271.8)
XYZ	xyz(26.7575, 22.6427, 78.5463)
Luminance	0.2265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BE7 #E7D064

analogous

#64BCE7 #647BE7 #8F64E7

triadic

#647BE7 #E7647B #7BE764

tetradic

#647BE7 #E764BC #E7D064 #64E78F

square

#647BE7 #E764BC #E7D064 #64E78F

split-complementary

#647BE7 #E78F64 #BCE764

monochromatic

#1C37B5 #2F4EDF #647BE7 #99A8EF #CED5F7

Accessibility & contrast

On white

3.80

#647BE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#647BE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BE7

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BE7	#FFFFFF	#000000	##000000
##647BE7	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4889EB

Deuteranopia (green-blind)

#357DE5

Tritanopia (blue-blind)

#0693A6

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647be7;
/* rgb */ color: rgb(100, 123, 231);
/* oklch */ color: oklch(61.8% 0.164 271.8);

Tailwind

colors: {
  custom: {
    50: '#9aa0ef',
    500: '#647be7',
    950: '#000000',
  },
}

SCSS

$custom: #647be7;
$custom-light: #9aa0ef;
$custom-dark: #000000;

JSON

{
  "hex": "#647be7",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 231
  },
  "hsl": {
    "h": 229.466,
    "s": 73.184,
    "l": 64.902
  },
  "oklch": {
    "l": 0.61805,
    "c": 0.16405,
    "h": 271.8
  },
  "luminance": 0.22645
}

Semantic roles & 50–950 ramp

primary

#647BE7

secondary

#EAE2BD

accent

#B310D5

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0E16

muted

#7F7E84

Preview Lab

Preview with #647BE7

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

Preview Lab → · Contrast checker → · Palette generator →