#648BC8#648BC8

#648BC8 is a light, moderate blue. Relative luminance 0.253; OKLCH L 63.4% C 0.102 H 259.1°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#648BC8
RGB	rgb(100, 139, 200)
HSL	hsl(217, 48%, 59%)
HSV	hsv(217, 50%, 78%)
CMYK	cmyk(50%, 30.5%, 0%, 21.6%)
CIE-LAB	lab(57.41, 3.56, -35.76)
CIE-LCH	lch(57.41, 35.93, 275.69°)
OKLab	oklab(63.37% -0.0194 -0.1004)
OKLCH	oklch(63.37% 0.102 259.1)
XYZ	xyz(24.9100, 25.3429, 58.2114)
Luminance	0.2535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BC8 #C8A164

analogous

#64BDC8 #648BC8 #6F64C8

triadic

#648BC8 #C8648B #8BC864

tetradic

#648BC8 #C864BD #C8A164 #64C86F

square

#648BC8 #C864BD #C8A164 #64C86F

split-complementary

#648BC8 #C86F64 #BDC864

monochromatic

#2F4F83 #3F6BB0 #648BC8 #91ADD8 #BECFE8

Accessibility & contrast

On white

3.46

#648BC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#648BC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BC8

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BC8	#FFFFFF	#000000	##000000
##648BC8	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738FCB

Deuteranopia (green-blind)

#6886C7

Tritanopia (blue-blind)

#3698A1

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #648bc8;
/* rgb */ color: rgb(100, 139, 200);
/* oklch */ color: oklch(63.4% 0.102 259.1);

Tailwind

colors: {
  custom: {
    50: '#96acd9',
    500: '#648bc8',
    950: '#000000',
  },
}

SCSS

$custom: #648bc8;
$custom-light: #96acd9;
$custom-dark: #000000;

JSON

{
  "hex": "#648bc8",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 200
  },
  "hsl": {
    "h": 216.6,
    "s": 47.619,
    "l": 58.824
  },
  "oklch": {
    "l": 0.63368,
    "c": 0.10226,
    "h": 259.1
  },
  "luminance": 0.25345
}

Semantic roles & 50–950 ramp

primary

#648BC8

secondary

#D8C8B0

accent

#A351D7

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0E1014

muted

#7E7F83

Preview Lab

Preview with #648BC8

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

Preview Lab → · Contrast checker → · Palette generator →