#647BBE#647BBE

#647BBE is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.4% C 0.106 H 268.7°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#647BBE
RGB	rgb(100, 123, 190)
HSL	hsl(225, 41%, 57%)
HSV	hsv(225, 47%, 75%)
CMYK	cmyk(47.4%, 35.3%, 0%, 25.5%)
CIE-LAB	lab(52.50, 10.01, -37.77)
CIE-LCH	lch(52.50, 39.07, 284.84°)
OKLab	oklab(59.4% -0.0025 -0.1063)
OKLCH	oklch(59.4% 0.106 268.7)
XYZ	xyz(21.6298, 20.5916, 51.5401)
Luminance	0.2059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BBE #BEA764

analogous

#64A8BE #647BBE #7A64BE

triadic

#647BBE #BE647B #7BBE64

tetradic

#647BBE #BE64A8 #BEA764 #64BE7A

square

#647BBE #BE64A8 #BEA764 #64BE7A

split-complementary

#647BBE #BE7A64 #A8BE64

monochromatic

#324376 #445CA1 #647BBE #8FA0D0 #BAC4E2

Accessibility & contrast

On white

4.10

#647BBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#647BBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BBE

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BBE	#FFFFFF	#000000	##000000
##647BBE	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6282C1

Deuteranopia (green-blind)

#597ABD

Tritanopia (blue-blind)

#418994

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647bbe;
/* rgb */ color: rgb(100, 123, 190);
/* oklch */ color: oklch(59.4% 0.106 268.7);

Tailwind

colors: {
  custom: {
    50: '#95a0d2',
    500: '#647bbe',
    950: '#000000',
  },
}

SCSS

$custom: #647bbe;
$custom-light: #95a0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#647bbe",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 190
  },
  "hsl": {
    "h": 224.667,
    "s": 40.909,
    "l": 56.863
  },
  "oklch": {
    "l": 0.59399,
    "c": 0.10634,
    "h": 268.7
  },
  "luminance": 0.20593
}

Semantic roles & 50–950 ramp

primary

#647BBE

secondary

#D1C8AD

accent

#B257D1

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0E14

muted

#7E7E82

Preview Lab

Preview with #647BBE

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

Preview Lab → · Contrast checker → · Palette generator →