#647FB2#647FB2

#647FB2 is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.7% C 0.085 H 262.6°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#647FB2
RGB	rgb(100, 127, 178)
HSL	hsl(219, 34%, 55%)
HSV	hsv(219, 44%, 70%)
CMYK	cmyk(43.8%, 28.7%, 0%, 30.2%)
CIE-LAB	lab(53.06, 4.01, -30.00)
CIE-LCH	lch(53.06, 30.27, 277.62°)
OKLab	oklab(59.65% -0.0108 -0.0838)
OKLCH	oklch(59.65% 0.085 262.6)
XYZ	xyz(20.8782, 21.1012, 45.0837)
Luminance	0.2110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FB2 #B29764

analogous

#64A6B2 #647FB2 #7064B2

triadic

#647FB2 #B2647F #7FB264

tetradic

#647FB2 #B264A6 #B29764 #64B270

square

#647FB2 #B264A6 #B29764 #64B270

split-complementary

#647FB2 #B27064 #A6B264

monochromatic

#344668 #486191 #647FB2 #8DA1C6 #B6C3DB

Accessibility & contrast

On white

4.02

#647FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#647FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FB2

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FB2	#FFFFFF	#000000	##000000
##647FB2	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D83B4

Deuteranopia (green-blind)

#647BB1

Tritanopia (blue-blind)

#488A91

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #647fb2;
/* rgb */ color: rgb(100, 127, 178);
/* oklch */ color: oklch(59.7% 0.085 262.6);

Tailwind

colors: {
  custom: {
    50: '#93a3c9',
    500: '#647fb2',
    950: '#000000',
  },
}

SCSS

$custom: #647fb2;
$custom-light: #93a3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#647fb2",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 178
  },
  "hsl": {
    "h": 219.231,
    "s": 33.621,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59653,
    "c": 0.08451,
    "h": 262.6
  },
  "luminance": 0.21102
}

Semantic roles & 50–950 ramp

primary

#647FB2

secondary

#C9BEA8

accent

#A45ECA

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #647FB2

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

Preview Lab → · Contrast checker → · Palette generator →