#648CCC#648CCC

#648CCC is a light, moderate blue. Relative luminance 0.258; OKLCH L 63.8% C 0.107 H 259.5°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#648CCC
RGB	rgb(100, 140, 204)
HSL	hsl(217, 50%, 60%)
HSV	hsv(217, 51%, 80%)
CMYK	cmyk(51%, 31.4%, 0%, 20%)
CIE-LAB	lab(57.87, 4.20, -37.29)
CIE-LCH	lch(57.87, 37.53, 276.43°)
OKLab	oklab(63.79% -0.0194 -0.1048)
OKLCH	oklch(63.79% 0.107 259.5)
XYZ	xyz(25.5290, 25.8233, 60.7542)
Luminance	0.2582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CCC #CCA464

analogous

#64C0CC #648CCC #7064CC

triadic

#648CCC #CC648C #8CCC64

tetradic

#648CCC #CC64C0 #CCA464 #64CC70

square

#648CCC #CC64C0 #CCA464 #64CC70

split-complementary

#648CCC #CC7064 #C0CC64

monochromatic

#2D5089 #3C6BB7 #648CCC #92AEDB #C0D0EA

Accessibility & contrast

On white

3.41

#648CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#648CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CCC

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CCC	#FFFFFF	#000000	##000000
##648CCC	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7390CF

Deuteranopia (green-blind)

#6787CB

Tritanopia (blue-blind)

#329AA3

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #648ccc;
/* rgb */ color: rgb(100, 140, 204);
/* oklch */ color: oklch(63.8% 0.107 259.5);

Tailwind

colors: {
  custom: {
    50: '#96addc',
    500: '#648ccc',
    950: '#000000',
  },
}

SCSS

$custom: #648ccc;
$custom-light: #96addc;
$custom-dark: #000000;

JSON

{
  "hex": "#648ccc",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 204
  },
  "hsl": {
    "h": 216.923,
    "s": 50.485,
    "l": 59.608
  },
  "oklch": {
    "l": 0.63788,
    "c": 0.10664,
    "h": 259.5
  },
  "luminance": 0.25825
}

Semantic roles & 50–950 ramp

primary

#648CCC

secondary

#DACBB2

accent

#A44EDA

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648CCC

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

Preview Lab → · Contrast checker → · Palette generator →