#648BD4#648BD4

#648BD4 is a light, moderate blue. Relative luminance 0.259; OKLCH L 64.0% C 0.119 H 262.2°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#648BD4
RGB	rgb(100, 139, 212)
HSL	hsl(219, 57%, 61%)
HSV	hsv(219, 53%, 83%)
CMYK	cmyk(52.8%, 34.4%, 0%, 16.9%)
CIE-LAB	lab(57.97, 7.28, -41.64)
CIE-LCH	lch(57.97, 42.27, 279.91°)
OKLab	oklab(63.99% -0.0162 -0.1175)
OKLCH	oklch(63.99% 0.119 262.2)
XYZ	xyz(26.3678, 25.9261, 65.8893)
Luminance	0.2593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BD4 #D4AD64

analogous

#64C3D4 #648BD4 #7564D4

triadic

#648BD4 #D4648B #8BD464

tetradic

#648BD4 #D464C3 #D4AD64 #64D475

square

#648BD4 #D464C3 #D4AD64 #64D475

split-complementary

#648BD4 #D47564 #C3D464

monochromatic

#294F94 #3668C4 #648BD4 #94AFE1 #C4D3EF

Accessibility & contrast

On white

3.39

#648BD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#648BD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BD4

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BD4	#FFFFFF	#000000	##000000
##648BD4	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E91D7

Deuteranopia (green-blind)

#6187D2

Tritanopia (blue-blind)

#299BA6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #648bd4;
/* rgb */ color: rgb(100, 139, 212);
/* oklch */ color: oklch(64.0% 0.119 262.2);

Tailwind

colors: {
  custom: {
    50: '#97ace1',
    500: '#648bd4',
    950: '#000000',
  },
}

SCSS

$custom: #648bd4;
$custom-light: #97ace1;
$custom-dark: #000000;

JSON

{
  "hex": "#648bd4",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 212
  },
  "hsl": {
    "h": 219.107,
    "s": 56.566,
    "l": 61.176
  },
  "oklch": {
    "l": 0.63987,
    "c": 0.11859,
    "h": 262.2
  },
  "luminance": 0.25928
}

Semantic roles & 50–950 ramp

primary

#648BD4

secondary

#DFD0B5

accent

#8B21C4

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648BD4

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

Preview Lab → · Contrast checker → · Palette generator →