#647DA4#647DA4

#647DA4 is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.6% C 0.067 H 259.1°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#647DA4
RGB	rgb(100, 125, 164)
HSL	hsl(217, 26%, 52%)
HSV	hsv(217, 39%, 64%)
CMYK	cmyk(39%, 23.8%, 0%, 35.7%)
CIE-LAB	lab(51.90, 1.15, -23.70)
CIE-LCH	lch(51.90, 23.73, 272.77°)
OKLab	oklab(58.55% -0.0126 -0.0658)
OKLCH	oklch(58.55% 0.067 259.1)
XYZ	xyz(19.2879, 20.0559, 37.9696)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DA4 #A48B64

analogous

#649DA4 #647DA4 #6B64A4

triadic

#647DA4 #A4647D #7DA464

tetradic

#647DA4 #A4649D #A48B64 #64A46B

square

#647DA4 #A4649D #A48B64 #64A46B

split-complementary

#647DA4 #A46B64 #9DA464

monochromatic

#344359 #4B6080 #647DA4 #8B9DBB #B1BED1

Accessibility & contrast

On white

4.19

#647DA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#647DA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DA4

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DA4	#FFFFFF	#000000	##000000
##647DA4	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7FA6

Deuteranopia (green-blind)

#6879A3

Tritanopia (blue-blind)

#4F858A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647da4;
/* rgb */ color: rgb(100, 125, 164);
/* oklch */ color: oklch(58.6% 0.067 259.1);

Tailwind

colors: {
  custom: {
    50: '#92a2bf',
    500: '#647da4',
    950: '#000000',
  },
}

SCSS

$custom: #647da4;
$custom-light: #92a2bf;
$custom-dark: #000000;

JSON

{
  "hex": "#647da4",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 164
  },
  "hsl": {
    "h": 216.563,
    "s": 26.016,
    "l": 51.765
  },
  "oklch": {
    "l": 0.58551,
    "c": 0.06697,
    "h": 259.1
  },
  "luminance": 0.20057
}

Semantic roles & 50–950 ramp

primary

#647DA4

secondary

#C0B5A4

accent

#9E65C2

background

#F9F9FB

surface

#F1F2F7

border

#CBCCD0

text

#0D0F12

muted

#7E7E81

Preview Lab

Preview with #647DA4

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

Preview Lab → · Contrast checker → · Palette generator →