#647EA8#647EA8

#647EA8 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.0% C 0.072 H 259.8°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#647EA8
RGB	rgb(100, 126, 168)
HSL	hsl(217, 28%, 53%)
HSV	hsv(217, 40%, 66%)
CMYK	cmyk(40.5%, 25%, 0%, 34.1%)
CIE-LAB	lab(52.35, 1.70, -25.33)
CIE-LCH	lch(52.35, 25.39, 273.84°)
OKLab	oklab(58.96% -0.0126 -0.0704)
OKLCH	oklch(58.96% 0.072 259.8)
XYZ	xyz(19.7820, 20.4571, 39.9445)
Luminance	0.2046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EA8 #A88E64

analogous

#64A0A8 #647EA8 #6C64A8

triadic

#647EA8 #A8647E #7EA864

tetradic

#647EA8 #A864A0 #A88E64 #64A86C

square

#647EA8 #A864A0 #A88E64 #64A86C

split-complementary

#647EA8 #A86C64 #A0A864

monochromatic

#34445D #4A6184 #647EA8 #8B9FBE #B2BFD4

Accessibility & contrast

On white

4.12

#647EA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#647EA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EA8

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EA8	#FFFFFF	#000000	##000000
##647EA8	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F80AA

Deuteranopia (green-blind)

#687AA7

Tritanopia (blue-blind)

#4D878C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647ea8;
/* rgb */ color: rgb(100, 126, 168);
/* oklch */ color: oklch(59.0% 0.072 259.8);

Tailwind

colors: {
  custom: {
    50: '#93a3c2',
    500: '#647ea8',
    950: '#000000',
  },
}

SCSS

$custom: #647ea8;
$custom-light: #93a3c2;
$custom-dark: #000000;

JSON

{
  "hex": "#647ea8",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 168
  },
  "hsl": {
    "h": 217.059,
    "s": 28.099,
    "l": 52.549
  },
  "oklch": {
    "l": 0.58958,
    "c": 0.07154,
    "h": 259.8
  },
  "luminance": 0.20458
}

Semantic roles & 50–950 ramp

primary

#647EA8

secondary

#C3B7A5

accent

#9F63C4

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647EA8

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

Preview Lab → · Contrast checker → · Palette generator →