#648BCF#648BCF

#648BCF is a light, moderate blue. Relative luminance 0.257; OKLCH L 63.7% C 0.112 H 261.0°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#648BCF
RGB	rgb(100, 139, 207)
HSL	hsl(218, 53%, 60%)
HSV	hsv(218, 52%, 81%)
CMYK	cmyk(51.7%, 32.9%, 0%, 18.8%)
CIE-LAB	lab(57.73, 5.72, -39.20)
CIE-LCH	lch(57.73, 39.61, 278.30°)
OKLab	oklab(63.73% -0.0174 -0.1104)
OKLCH	oklch(63.73% 0.112 261)
XYZ	xyz(25.7468, 25.6777, 62.6189)
Luminance	0.2568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BCF #CFA864

analogous

#64C0CF #648BCF #7364CF

triadic

#648BCF #CF648B #8BCF64

tetradic

#648BCF #CF64C0 #CFA864 #64CF73

square

#648BCF #CF64C0 #CFA864 #64CF73

split-complementary

#648BCF #CF7364 #C0CF64

monochromatic

#2C4F8D #3A69BC #648BCF #93AEDD #C1D1EC

Accessibility & contrast

On white

3.42

#648BCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#648BCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BCF

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BCF	#FFFFFF	#000000	##000000
##648BCF	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7090D2

Deuteranopia (green-blind)

#6486CE

Tritanopia (blue-blind)

#2F9AA3

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #648bcf;
/* rgb */ color: rgb(100, 139, 207);
/* oklch */ color: oklch(63.7% 0.112 261.0);

Tailwind

colors: {
  custom: {
    50: '#96acde',
    500: '#648bcf',
    950: '#000000',
  },
}

SCSS

$custom: #648bcf;
$custom-light: #96acde;
$custom-dark: #000000;

JSON

{
  "hex": "#648bcf",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 207
  },
  "hsl": {
    "h": 218.131,
    "s": 52.709,
    "l": 60.196
  },
  "oklch": {
    "l": 0.63725,
    "c": 0.11176,
    "h": 261
  },
  "luminance": 0.2568
}

Semantic roles & 50–950 ramp

primary

#648BCF

secondary

#DCCDB3

accent

#8825C0

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648BCF

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

Preview Lab → · Contrast checker → · Palette generator →