#648CCE#648CCE

#648CCE is a light, moderate blue. Relative luminance 0.259; OKLCH L 63.9% C 0.109 H 260.0°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#648CCE
RGB	rgb(100, 140, 206)
HSL	hsl(217, 52%, 60%)
HSV	hsv(217, 51%, 81%)
CMYK	cmyk(51.5%, 32%, 0%, 19.2%)
CIE-LAB	lab(57.96, 4.82, -38.27)
CIE-LCH	lch(57.96, 38.58, 277.18°)
OKLab	oklab(63.89% -0.0189 -0.1077)
OKLCH	oklch(63.89% 0.109 260)
XYZ	xyz(25.7704, 25.9199, 62.0256)
Luminance	0.2592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CCE #CEA664

analogous

#64C1CE #648CCE #7164CE

triadic

#648CCE #CE648C #8CCE64

tetradic

#648CCE #CE64C1 #CEA664 #64CE71

square

#648CCE #CE64C1 #CEA664 #64CE71

split-complementary

#648CCE #CE7164 #C1CE64

monochromatic

#2C508C #3B6BBA #648CCE #92AFDD #C1D1EB

Accessibility & contrast

On white

3.40

#648CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#648CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CCE

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CCE	#FFFFFF	#000000	##000000
##648CCE	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7291D1

Deuteranopia (green-blind)

#6687CD

Tritanopia (blue-blind)

#309AA4

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #648cce;
/* rgb */ color: rgb(100, 140, 206);
/* oklch */ color: oklch(63.9% 0.109 260.0);

Tailwind

colors: {
  custom: {
    50: '#96addd',
    500: '#648cce',
    950: '#000000',
  },
}

SCSS

$custom: #648cce;
$custom-light: #96addd;
$custom-dark: #000000;

JSON

{
  "hex": "#648cce",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 206
  },
  "hsl": {
    "h": 217.358,
    "s": 51.961,
    "l": 60
  },
  "oklch": {
    "l": 0.6389,
    "c": 0.10935,
    "h": 260
  },
  "luminance": 0.25922
}

Semantic roles & 50–950 ramp

primary

#648CCE

secondary

#DBCCB2

accent

#A54CDB

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648CCE

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

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