#647EA4#647EA4

#647EA4 is a mid, moderate blue. Relative luminance 0.203; OKLCH L 58.8% C 0.066 H 257.8°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#647EA4
RGB	rgb(100, 126, 164)
HSL	hsl(216, 26%, 52%)
HSV	hsv(216, 39%, 64%)
CMYK	cmyk(39%, 23.2%, 0%, 35.7%)
CIE-LAB	lab(52.19, 0.56, -23.26)
CIE-LCH	lch(52.19, 23.27, 271.38°)
OKLab	oklab(58.78% -0.014 -0.0645)
OKLCH	oklch(58.78% 0.066 257.8)
XYZ	xyz(19.4151, 20.3104, 38.0120)
Luminance	0.2031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EA4 #A48A64

analogous

#649EA4 #647EA4 #6A64A4

triadic

#647EA4 #A4647E #7EA464

tetradic

#647EA4 #A4649E #A48A64 #64A46A

square

#647EA4 #A4649E #A48A64 #64A46A

split-complementary

#647EA4 #A46A64 #9EA464

monochromatic

#344359 #4B6080 #647EA4 #8B9EBB #B1BED1

Accessibility & contrast

On white

4.15

#647EA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#647EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EA4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EA4	#FFFFFF	#000000	##000000
##647EA4	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7080A6

Deuteranopia (green-blind)

#697AA3

Tritanopia (blue-blind)

#4F868B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647ea4;
/* rgb */ color: rgb(100, 126, 164);
/* oklch */ color: oklch(58.8% 0.066 257.8);

Tailwind

colors: {
  custom: {
    50: '#92a3bf',
    500: '#647ea4',
    950: '#000000',
  },
}

SCSS

$custom: #647ea4;
$custom-light: #92a3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#647ea4",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 164
  },
  "hsl": {
    "h": 215.625,
    "s": 26.016,
    "l": 51.765
  },
  "oklch": {
    "l": 0.58775,
    "c": 0.06602,
    "h": 257.8
  },
  "luminance": 0.20311
}

Semantic roles & 50–950 ramp

primary

#647EA4

secondary

#C0B5A4

accent

#9D65C2

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647EA4

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

Preview Lab → · Contrast checker → · Palette generator →