#647CAB#647CAB

#647CAB is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.7% C 0.078 H 263.3°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#647CAB
RGB	rgb(100, 124, 171)
HSL	hsl(220, 30%, 53%)
HSV	hsv(220, 42%, 67%)
CMYK	cmyk(41.5%, 27.5%, 0%, 32.9%)
CIE-LAB	lab(51.91, 3.75, -27.75)
CIE-LCH	lch(51.91, 28.00, 277.69°)
OKLab	oklab(58.66% -0.009 -0.0773)
OKLCH	oklch(58.66% 0.078 263.3)
XYZ	xyz(19.8116, 20.0639, 41.3490)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CAB #AB9364

analogous

#649FAB #647CAB #6F64AB

triadic

#647CAB #AB647C #7CAB64

tetradic

#647CAB #AB649F #AB9364 #64AB6F

square

#647CAB #AB649F #AB9364 #64AB6F

split-complementary

#647CAB #AB6F64 #9FAB64

monochromatic

#344360 #4A5F88 #647CAB #8C9EC1 #B3BFD6

Accessibility & contrast

On white

4.19

#647CAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#647CAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CAB

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CAB	#FFFFFF	#000000	##000000
##647CAB	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAD

Deuteranopia (green-blind)

#6479AA

Tritanopia (blue-blind)

#4C868C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647cab;
/* rgb */ color: rgb(100, 124, 171);
/* oklch */ color: oklch(58.7% 0.078 263.3);

Tailwind

colors: {
  custom: {
    50: '#93a1c4',
    500: '#647cab',
    950: '#000000',
  },
}

SCSS

$custom: #647cab;
$custom-light: #93a1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#647cab",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 171
  },
  "hsl": {
    "h": 219.718,
    "s": 29.707,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58655,
    "c": 0.07787,
    "h": 263.3
  },
  "luminance": 0.20065
}

Semantic roles & 50–950 ramp

primary

#647CAB

secondary

#C5BAA6

accent

#A462C6

background

#F9F9FC

surface

#F1F2F8

border

#CBCCD1

text

#0D0F12

muted

#7E7E81

Preview Lab

Preview with #647CAB

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

Preview Lab → · Contrast checker → · Palette generator →