#648BCA#648BCA

#648BCA is a light, moderate blue. Relative luminance 0.254; OKLCH L 63.5% C 0.105 H 259.7°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#648BCA
RGB	rgb(100, 139, 202)
HSL	hsl(217, 49%, 59%)
HSV	hsv(217, 50%, 79%)
CMYK	cmyk(50.5%, 31.2%, 0%, 20.8%)
CIE-LAB	lab(57.50, 4.17, -36.74)
CIE-LCH	lch(57.50, 36.98, 276.48°)
OKLab	oklab(63.47% -0.0188 -0.1033)
OKLCH	oklch(63.47% 0.105 259.7)
XYZ	xyz(25.1452, 25.4370, 59.4505)
Luminance	0.2544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BCA #CAA364

analogous

#64BECA #648BCA #7064CA

triadic

#648BCA #CA648B #8BCA64

tetradic

#648BCA #CA64BE #CAA364 #64CA70

square

#648BCA #CA64BE #CAA364 #64CA70

split-complementary

#648BCA #CA7064 #BECA64

monochromatic

#2E4F86 #3D6BB3 #648BCA #92ADDA #BFCFE9

Accessibility & contrast

On white

3.45

#648BCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#648BCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BCA

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BCA	#FFFFFF	#000000	##000000
##648BCA	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738FCD

Deuteranopia (green-blind)

#6786C9

Tritanopia (blue-blind)

#3499A1

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #648bca;
/* rgb */ color: rgb(100, 139, 202);
/* oklch */ color: oklch(63.5% 0.105 259.7);

Tailwind

colors: {
  custom: {
    50: '#96acda',
    500: '#648bca',
    950: '#000000',
  },
}

SCSS

$custom: #648bca;
$custom-light: #96acda;
$custom-dark: #000000;

JSON

{
  "hex": "#648bca",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 202
  },
  "hsl": {
    "h": 217.059,
    "s": 49.038,
    "l": 59.216
  },
  "oklch": {
    "l": 0.63469,
    "c": 0.10497,
    "h": 259.7
  },
  "luminance": 0.25439
}

Semantic roles & 50–950 ramp

primary

#648BCA

secondary

#D9CAB1

accent

#A44FD9

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648BCA

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

Preview Lab → · Contrast checker → · Palette generator →