#647DA7#647DA7

#647DA7 is a mid, moderate blue. Relative luminance 0.202; OKLCH L 58.7% C 0.071 H 260.6°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#647DA7
RGB	rgb(100, 125, 167)
HSL	hsl(218, 28%, 52%)
HSV	hsv(218, 40%, 65%)
CMYK	cmyk(40.1%, 25.1%, 0%, 34.5%)
CIE-LAB	lab(52.02, 2.00, -25.25)
CIE-LCH	lch(52.02, 25.33, 274.53°)
OKLab	oklab(58.69% -0.0116 -0.0702)
OKLCH	oklch(58.69% 0.071 260.6)
XYZ	xyz(19.5620, 20.1656, 39.4133)
Luminance	0.2017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DA7 #A78E64

analogous

#649FA7 #647DA7 #6D64A7

triadic

#647DA7 #A7647D #7DA764

tetradic

#647DA7 #A7649F #A78E64 #64A76D

square

#647DA7 #A7649F #A78E64 #64A76D

split-complementary

#647DA7 #A76D64 #9FA764

monochromatic

#34435C #4B6083 #647DA7 #8B9EBD #B2BED3

Accessibility & contrast

On white

4.17

#647DA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#647DA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DA7

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DA7	#FFFFFF	#000000	##000000
##647DA7	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E80A9

Deuteranopia (green-blind)

#6779A6

Tritanopia (blue-blind)

#4D868B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647da7;
/* rgb */ color: rgb(100, 125, 167);
/* oklch */ color: oklch(58.7% 0.071 260.6);

Tailwind

colors: {
  custom: {
    50: '#93a2c1',
    500: '#647da7',
    950: '#000000',
  },
}

SCSS

$custom: #647da7;
$custom-light: #93a2c1;
$custom-dark: #000000;

JSON

{
  "hex": "#647da7",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 167
  },
  "hsl": {
    "h": 217.612,
    "s": 27.572,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58689,
    "c": 0.07115,
    "h": 260.6
  },
  "luminance": 0.20167
}

Semantic roles & 50–950 ramp

primary

#647DA7

secondary

#C2B7A5

accent

#A064C4

background

#F9F9FB

surface

#F1F2F7

border

#CBCCD0

text

#0D0F12

muted

#7E7E81

Preview Lab

Preview with #647DA7

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

Preview Lab → · Contrast checker → · Palette generator →