#647EA9#647EA9

#647EA9 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.0% C 0.073 H 260.3°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#647EA9
RGB	rgb(100, 126, 169)
HSL	hsl(217, 29%, 53%)
HSV	hsv(217, 41%, 66%)
CMYK	cmyk(40.8%, 25.4%, 0%, 33.7%)
CIE-LAB	lab(52.39, 1.99, -25.84)
CIE-LCH	lch(52.39, 25.92, 274.39°)
OKLab	oklab(59% -0.0123 -0.0719)
OKLCH	oklch(59% 0.073 260.3)
XYZ	xyz(19.8756, 20.4945, 40.4370)
Luminance	0.2050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EA9 #A98F64

analogous

#64A1A9 #647EA9 #6C64A9

triadic

#647EA9 #A9647E #7EA964

tetradic

#647EA9 #A964A1 #A98F64 #64A96C

square

#647EA9 #A964A1 #A98F64 #64A96C

split-complementary

#647EA9 #A96C64 #A1A964

monochromatic

#34445E #4A6186 #647EA9 #8B9FBF #B3C0D5

Accessibility & contrast

On white

4.12

#647EA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#647EA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EA9

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EA9	#FFFFFF	#000000	##000000
##647EA9	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F81AB

Deuteranopia (green-blind)

#677AA8

Tritanopia (blue-blind)

#4C878D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647ea9;
/* rgb */ color: rgb(100, 126, 169);
/* oklch */ color: oklch(59.0% 0.073 260.3);

Tailwind

colors: {
  custom: {
    50: '#93a3c2',
    500: '#647ea9',
    950: '#000000',
  },
}

SCSS

$custom: #647ea9;
$custom-light: #93a3c2;
$custom-dark: #000000;

JSON

{
  "hex": "#647ea9",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 169
  },
  "hsl": {
    "h": 217.391,
    "s": 28.631,
    "l": 52.745
  },
  "oklch": {
    "l": 0.59004,
    "c": 0.07293,
    "h": 260.3
  },
  "luminance": 0.20496
}

Semantic roles & 50–950 ramp

primary

#647EA9

secondary

#C3B8A5

accent

#A063C5

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647EA9

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

Preview Lab → · Contrast checker → · Palette generator →