#648BC7#648BC7

#648BC7 is a light, moderate blue. Relative luminance 0.253; OKLCH L 63.3% C 0.101 H 258.8°. Best body text is #000000 at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#648BC7
RGB	rgb(100, 139, 199)
HSL	hsl(216, 47%, 59%)
HSV	hsv(216, 50%, 78%)
CMYK	cmyk(49.7%, 30.2%, 0%, 22%)
CIE-LAB	lab(57.36, 3.25, -35.26)
CIE-LCH	lch(57.36, 35.41, 275.27°)
OKLab	oklab(63.32% -0.0196 -0.099)
OKLCH	oklch(63.32% 0.101 258.8)
XYZ	xyz(24.7935, 25.2964, 57.5979)
Luminance	0.2530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BC7 #C7A064

analogous

#64BCC7 #648BC7 #6E64C7

triadic

#648BC7 #C7648B #8BC764

tetradic

#648BC7 #C764BC #C7A064 #64C76E

square

#648BC7 #C764BC #C7A064 #64C76E

split-complementary

#648BC7 #C76E64 #BCC764

monochromatic

#2F5082 #3F6BAF #648BC7 #91ADD7 #BECEE7

Accessibility & contrast

On white

3.47

#648BC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.06

#648BC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BC7

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BC7	#FFFFFF	#000000	##000000
##648BC7	1.00	3.47	6.06	6.06
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.06	21.00	1.00	1.00
##000000	6.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748FCA

Deuteranopia (green-blind)

#6885C6

Tritanopia (blue-blind)

#3798A0

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #648bc7;
/* rgb */ color: rgb(100, 139, 199);
/* oklch */ color: oklch(63.3% 0.101 258.8);

Tailwind

colors: {
  custom: {
    50: '#95acd8',
    500: '#648bc7',
    950: '#000000',
  },
}

SCSS

$custom: #648bc7;
$custom-light: #95acd8;
$custom-dark: #000000;

JSON

{
  "hex": "#648bc7",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 199
  },
  "hsl": {
    "h": 216.364,
    "s": 46.919,
    "l": 58.627
  },
  "oklch": {
    "l": 0.63318,
    "c": 0.1009,
    "h": 258.8
  },
  "luminance": 0.25298
}

Semantic roles & 50–950 ramp

primary

#648BC7

secondary

#D7C8B0

accent

#A251D7

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0E1014

muted

#7E7F83

Preview Lab

Preview with #648BC7

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

Preview Lab → · Contrast checker → · Palette generator →