#647BEF#647BEF

#647BEF is a light, vivid blue. Relative luminance 0.231; OKLCH L 62.3% C 0.175 H 272.0°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#647BEF
RGB	rgb(100, 123, 239)
HSL	hsl(230, 81%, 66%)
HSV	hsv(230, 58%, 94%)
CMYK	cmyk(58.2%, 48.5%, 0%, 6.3%)
CIE-LAB	lab(55.18, 25.54, -61.16)
CIE-LCH	lch(55.18, 66.28, 292.66°)
OKLab	oklab(62.32% 0.006 -0.1748)
OKLCH	oklch(62.32% 0.175 272)
XYZ	xyz(27.9133, 23.1051, 84.6334)
Luminance	0.2311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BEF #EFD864

analogous

#64C1EF #647BEF #9364EF

triadic

#647BEF #EF647B #7BEF64

tetradic

#647BEF #EF64C1 #EFD864 #64EF93

square

#647BEF #EF64C1 #EFD864 #64EF93

split-complementary

#647BEF #EF9364 #C1EF64

monochromatic

#1431C4 #2D4CE9 #647BEF #9BAAF5 #D3D9FA

Accessibility & contrast

On white

3.74

#647BEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#647BEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BEF

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BEF	#FFFFFF	#000000	##000000
##647BEF	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#408AF3

Deuteranopia (green-blind)

#277EED

Tritanopia (blue-blind)

#0095AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #647bef;
/* rgb */ color: rgb(100, 123, 239);
/* oklch */ color: oklch(62.3% 0.175 272.0);

Tailwind

colors: {
  custom: {
    50: '#9ba0f5',
    500: '#647bef',
    950: '#000000',
  },
}

SCSS

$custom: #647bef;
$custom-light: #9ba0f5;
$custom-dark: #000000;

JSON

{
  "hex": "#647bef",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 239
  },
  "hsl": {
    "h": 230.072,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.62322,
    "c": 0.17494,
    "h": 272
  },
  "luminance": 0.23107
}

Semantic roles & 50–950 ramp

primary

#647BEF

secondary

#EEE6C1

accent

#BA08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #647BEF

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

Preview Lab → · Contrast checker → · Palette generator →