#648CD1#648CD1

#648CD1 is a light, moderate blue. Relative luminance 0.261; OKLCH L 64.0% C 0.113 H 260.8°. Best body text is #000000 at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#648CD1
RGB	rgb(100, 140, 209)
HSL	hsl(218, 54%, 61%)
HSV	hsv(218, 52%, 82%)
CMYK	cmyk(52.2%, 33%, 0%, 18%)
CIE-LAB	lab(58.10, 5.75, -39.74)
CIE-LCH	lch(58.10, 40.16, 278.23°)
OKLab	oklab(64.04% -0.0181 -0.112)
OKLCH	oklch(64.04% 0.113 260.8)
XYZ	xyz(26.1383, 26.0670, 63.9633)
Luminance	0.2607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CD1 #D1A964

analogous

#64C2D1 #648CD1 #7264D1

triadic

#648CD1 #D1648C #8CD164

tetradic

#648CD1 #D164C2 #D1A964 #64D172

square

#648CD1 #D164C2 #D1A964 #64D172

split-complementary

#648CD1 #D17264 #C2D164

monochromatic

#2B5090 #396ABF #648CD1 #93AFDF #C2D2ED

Accessibility & contrast

On white

3.38

#648CD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.21

#648CD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CD1

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CD1	#FFFFFF	#000000	##000000
##648CD1	1.00	3.38	6.21	6.21
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.21	21.00	1.00	1.00
##000000	6.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7191D4

Deuteranopia (green-blind)

#6487D0

Tritanopia (blue-blind)

#2D9BA5

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #648cd1;
/* rgb */ color: rgb(100, 140, 209);
/* oklch */ color: oklch(64.0% 0.113 260.8);

Tailwind

colors: {
  custom: {
    50: '#97addf',
    500: '#648cd1',
    950: '#000000',
  },
}

SCSS

$custom: #648cd1;
$custom-light: #97addf;
$custom-dark: #000000;

JSON

{
  "hex": "#648cd1",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 209
  },
  "hsl": {
    "h": 217.982,
    "s": 54.229,
    "l": 60.588
  },
  "oklch": {
    "l": 0.64044,
    "c": 0.11341,
    "h": 260.8
  },
  "luminance": 0.26069
}

Semantic roles & 50–950 ramp

primary

#648CD1

secondary

#DDCEB4

accent

#8824C2

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648CD1

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

Preview Lab → · Contrast checker → · Palette generator →