#648FD5#648FD5

#648FD5 is a light, moderate blue. Relative luminance 0.272; OKLCH L 64.9% C 0.116 H 259.8°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#648FD5
RGB	rgb(100, 143, 213)
HSL	hsl(217, 57%, 61%)
HSV	hsv(217, 53%, 84%)
CMYK	cmyk(53.1%, 32.9%, 0%, 16.5%)
CIE-LAB	lab(59.12, 5.24, -40.39)
CIE-LCH	lch(59.12, 40.73, 277.39°)
OKLab	oklab(64.9% -0.0205 -0.1138)
OKLCH	oklch(64.9% 0.116 259.8)
XYZ	xyz(27.0841, 27.1563, 66.7523)
Luminance	0.2716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FD5 #D5AA64

analogous

#64C8D5 #648FD5 #7264D5

triadic

#648FD5 #D5648F #8FD564

tetradic

#648FD5 #D564C8 #D5AA64 #64D572

square

#648FD5 #D564C8 #D5AA64 #64D572

split-complementary

#648FD5 #D57264 #C8D564

monochromatic

#295296 #366DC6 #648FD5 #94B2E2 #C4D5EF

Accessibility & contrast

On white

3.27

#648FD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#648FD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FD5

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FD5	#FFFFFF	#000000	##000000
##648FD5	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7394D8

Deuteranopia (green-blind)

#6689D4

Tritanopia (blue-blind)

#279EA8

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #648fd5;
/* rgb */ color: rgb(100, 143, 213);
/* oklch */ color: oklch(64.9% 0.116 259.8);

Tailwind

colors: {
  custom: {
    50: '#97afe2',
    500: '#648fd5',
    950: '#000000',
  },
}

SCSS

$custom: #648fd5;
$custom-light: #97afe2;
$custom-dark: #000000;

JSON

{
  "hex": "#648fd5",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 213
  },
  "hsl": {
    "h": 217.168,
    "s": 57.36,
    "l": 61.373
  },
  "oklch": {
    "l": 0.64899,
    "c": 0.11564,
    "h": 259.8
  },
  "luminance": 0.27158
}

Semantic roles & 50–950 ramp

primary

#648FD5

secondary

#E0CFB5

accent

#8621C5

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648FD5

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

Preview Lab → · Contrast checker → · Palette generator →