#647AEC#647AEC

#647AEC is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.9% C 0.172 H 272.2°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#647AEC
RGB	rgb(100, 122, 236)
HSL	hsl(230, 78%, 66%)
HSV	hsv(230, 58%, 93%)
CMYK	cmyk(57.6%, 48.3%, 0%, 7.5%)
CIE-LAB	lab(54.74, 25.17, -60.20)
CIE-LCH	lch(54.74, 65.25, 292.69°)
OKLab	oklab(61.93% 0.0067 -0.172)
OKLCH	oklch(61.93% 0.172 272.2)
XYZ	xyz(27.3504, 22.6824, 82.2775)
Luminance	0.2268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647AEC #ECD664

analogous

#64BEEC #647AEC #9264EC

triadic

#647AEC #EC647A #7AEC64

tetradic

#647AEC #EC64BE #ECD664 #64EC92

square

#647AEC #EC64BE #ECD664 #64EC92

split-complementary

#647AEC #EC9264 #BEEC64

monochromatic

#1732BE #2D4BE5 #647AEC #9BA9F3 #D1D8F9

Accessibility & contrast

On white

3.79

#647AEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#647AEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647AEC

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647AEC	#FFFFFF	#000000	##000000
##647AEC	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4189F0

Deuteranopia (green-blind)

#2A7DEA

Tritanopia (blue-blind)

#0094A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647aec;
/* rgb */ color: rgb(100, 122, 236);
/* oklch */ color: oklch(61.9% 0.172 272.2);

Tailwind

colors: {
  custom: {
    50: '#9ba0f3',
    500: '#647aec',
    950: '#000000',
  },
}

SCSS

$custom: #647aec;
$custom-light: #9ba0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#647aec",
  "rgb": {
    "r": 100,
    "g": 122,
    "b": 236
  },
  "hsl": {
    "h": 230.294,
    "s": 78.161,
    "l": 65.882
  },
  "oklch": {
    "l": 0.61932,
    "c": 0.17213,
    "h": 272.2
  },
  "luminance": 0.22685
}

Semantic roles & 50–950 ramp

primary

#647AEC

secondary

#ECE5BF

accent

#B90BDA

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #647AEC

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

Preview Lab → · Contrast checker → · Palette generator →