#647FA7#647FA7

#647FA7 is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.1% C 0.069 H 258.1°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#647FA7
RGB	rgb(100, 127, 167)
HSL	hsl(216, 28%, 52%)
HSV	hsv(216, 40%, 65%)
CMYK	cmyk(40.1%, 24%, 0%, 34.5%)
CIE-LAB	lab(52.59, 0.82, -24.37)
CIE-LCH	lch(52.59, 24.39, 271.94°)
OKLab	oklab(59.14% -0.0143 -0.0677)
OKLCH	oklch(59.14% 0.069 258.1)
XYZ	xyz(19.8177, 20.6770, 39.4986)
Luminance	0.2068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FA7 #A78C64

analogous

#64A0A7 #647FA7 #6B64A7

triadic

#647FA7 #A7647F #7FA764

tetradic

#647FA7 #A764A0 #A78C64 #64A76B

square

#647FA7 #A764A0 #A78C64 #64A76B

split-complementary

#647FA7 #A76B64 #A0A764

monochromatic

#34445C #4B6183 #647FA7 #8B9FBD #B2BFD3

Accessibility & contrast

On white

4.09

#647FA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#647FA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FA7

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FA7	#FFFFFF	#000000	##000000
##647FA7	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7181A9

Deuteranopia (green-blind)

#697BA6

Tritanopia (blue-blind)

#4D888D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647fa7;
/* rgb */ color: rgb(100, 127, 167);
/* oklch */ color: oklch(59.1% 0.069 258.1);

Tailwind

colors: {
  custom: {
    50: '#93a4c1',
    500: '#647fa7',
    950: '#000000',
  },
}

SCSS

$custom: #647fa7;
$custom-light: #93a4c1;
$custom-dark: #000000;

JSON

{
  "hex": "#647fa7",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 167
  },
  "hsl": {
    "h": 215.821,
    "s": 27.572,
    "l": 52.353
  },
  "oklch": {
    "l": 0.59135,
    "c": 0.06918,
    "h": 258.1
  },
  "luminance": 0.20678
}

Semantic roles & 50–950 ramp

primary

#647FA7

secondary

#C2B6A5

accent

#9D64C4

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647FA7

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

Preview Lab → · Contrast checker → · Palette generator →