#647BE9#647BE9

#647BE9 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.9% C 0.167 H 271.8°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#647BE9
RGB	rgb(100, 123, 233)
HSL	hsl(230, 75%, 65%)
HSV	hsv(230, 57%, 91%)
CMYK	cmyk(57.1%, 47.2%, 0%, 8.6%)
CIE-LAB	lab(54.82, 23.59, -58.40)
CIE-LCH	lch(54.82, 62.98, 292.00°)
OKLab	oklab(61.93% 0.0053 -0.1667)
OKLCH	oklch(61.93% 0.167 271.8)
XYZ	xyz(27.0416, 22.7564, 80.0424)
Luminance	0.2276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BE9 #E9D264

analogous

#64BDE9 #647BE9 #8F64E9

triadic

#647BE9 #E9647B #7BE964

tetradic

#647BE9 #E964BD #E9D264 #64E98F

square

#647BE9 #E964BD #E9D264 #64E98F

split-complementary

#647BE9 #E98F64 #BDE964

monochromatic

#1A36B8 #2E4DE1 #647BE9 #9AA9F1 #CFD6F8

Accessibility & contrast

On white

3.78

#647BE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#647BE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BE9

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BE9	#FFFFFF	#000000	##000000
##647BE9	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4689ED

Deuteranopia (green-blind)

#327EE7

Tritanopia (blue-blind)

#0094A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647be9;
/* rgb */ color: rgb(100, 123, 233);
/* oklch */ color: oklch(61.9% 0.167 271.8);

Tailwind

colors: {
  custom: {
    50: '#9aa0f1',
    500: '#647be9',
    950: '#000000',
  },
}

SCSS

$custom: #647be9;
$custom-light: #9aa0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#647be9",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 233
  },
  "hsl": {
    "h": 229.624,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.61933,
    "c": 0.16679,
    "h": 271.8
  },
  "luminance": 0.22758
}

Semantic roles & 50–950 ramp

primary

#647BE9

secondary

#EBE3BE

accent

#B50ED7

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #647BE9

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

Preview Lab → · Contrast checker → · Palette generator →