#647CBA#647CBA

#647CBA is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.4% C 0.099 H 267.3°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#647CBA
RGB	rgb(100, 124, 186)
HSL	hsl(223, 38%, 56%)
HSV	hsv(223, 46%, 73%)
CMYK	cmyk(46.2%, 33.3%, 0%, 27.1%)
CIE-LAB	lab(52.58, 8.19, -35.34)
CIE-LCH	lch(52.58, 36.28, 283.05°)
OKLab	oklab(59.4% -0.0048 -0.0993)
OKLCH	oklch(59.4% 0.099 267.3)
XYZ	xyz(21.3233, 20.6685, 49.3107)
Luminance	0.2067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CBA #BAA264

analogous

#64A7BA #647CBA #7764BA

triadic

#647CBA #BA647C #7CBA64

tetradic

#647CBA #BA64A7 #BAA264 #64BA77

square

#647CBA #BA64A7 #BAA264 #64BA77

split-complementary

#647CBA #BA7764 #A7BA64

monochromatic

#324471 #455D9C #647CBA #8EA0CD #B9C4E0

Accessibility & contrast

On white

4.09

#647CBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#647CBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CBA

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CBA	#FFFFFF	#000000	##000000
##647CBA	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BD

Deuteranopia (green-blind)

#5D7AB9

Tritanopia (blue-blind)

#438992

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647cba;
/* rgb */ color: rgb(100, 124, 186);
/* oklch */ color: oklch(59.4% 0.099 267.3);

Tailwind

colors: {
  custom: {
    50: '#94a1cf',
    500: '#647cba',
    950: '#000000',
  },
}

SCSS

$custom: #647cba;
$custom-light: #94a1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#647cba",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 186
  },
  "hsl": {
    "h": 223.256,
    "s": 38.393,
    "l": 56.078
  },
  "oklch": {
    "l": 0.59403,
    "c": 0.09937,
    "h": 267.3
  },
  "luminance": 0.2067
}

Semantic roles & 50–950 ramp

primary

#647CBA

secondary

#CFC5AB

accent

#AE59CE

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0D0F14

muted

#7E7E82

Preview Lab

Preview with #647CBA

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

Preview Lab → · Contrast checker → · Palette generator →