#647EA7#647EA7

#647EA7 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 58.9% C 0.070 H 259.3°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#647EA7
RGB	rgb(100, 126, 167)
HSL	hsl(217, 28%, 52%)
HSV	hsv(217, 40%, 65%)
CMYK	cmyk(40.1%, 24.6%, 0%, 34.5%)
CIE-LAB	lab(52.31, 1.41, -24.81)
CIE-LCH	lch(52.31, 24.85, 273.26°)
OKLab	oklab(58.91% -0.013 -0.0689)
OKLCH	oklch(58.91% 0.07 259.3)
XYZ	xyz(19.6892, 20.4200, 39.4557)
Luminance	0.2042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EA7 #A78D64

analogous

#64A0A7 #647EA7 #6B64A7

triadic

#647EA7 #A7647E #7EA764

tetradic

#647EA7 #A764A0 #A78D64 #64A76B

square

#647EA7 #A764A0 #A78D64 #64A76B

split-complementary

#647EA7 #A76B64 #A0A764

monochromatic

#34445C #4B6183 #647EA7 #8B9EBD #B2BFD3

Accessibility & contrast

On white

4.13

#647EA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#647EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EA7

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EA7	#FFFFFF	#000000	##000000
##647EA7	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F80A9

Deuteranopia (green-blind)

#687AA6

Tritanopia (blue-blind)

#4D878C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647ea7;
/* rgb */ color: rgb(100, 126, 167);
/* oklch */ color: oklch(58.9% 0.070 259.3);

Tailwind

colors: {
  custom: {
    50: '#93a3c1',
    500: '#647ea7',
    950: '#000000',
  },
}

SCSS

$custom: #647ea7;
$custom-light: #93a3c1;
$custom-dark: #000000;

JSON

{
  "hex": "#647ea7",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 167
  },
  "hsl": {
    "h": 216.716,
    "s": 27.572,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58912,
    "c": 0.07015,
    "h": 259.3
  },
  "luminance": 0.20421
}

Semantic roles & 50–950 ramp

primary

#647EA7

secondary

#C2B7A5

accent

#9F64C4

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647EA7

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

Preview Lab → · Contrast checker → · Palette generator →