#648BC4#648BC4

#648BC4 is a light, moderate blue. Relative luminance 0.252; OKLCH L 63.2% C 0.097 H 257.8°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#648BC4
RGB	rgb(100, 139, 196)
HSL	hsl(216, 45%, 58%)
HSV	hsv(216, 49%, 77%)
CMYK	cmyk(49%, 29.1%, 0%, 23.1%)
CIE-LAB	lab(57.23, 2.34, -33.77)
CIE-LCH	lch(57.23, 33.86, 273.97°)
OKLab	oklab(63.17% -0.0205 -0.0947)
OKLCH	oklch(63.17% 0.097 257.8)
XYZ	xyz(24.4486, 25.1584, 55.7816)
Luminance	0.2516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BC4 #C49D64

analogous

#64BBC4 #648BC4 #6D64C4

triadic

#648BC4 #C4648B #8BC464

tetradic

#648BC4 #C464BB #C49D64 #64C46D

square

#648BC4 #C464BB #C49D64 #64C46D

split-complementary

#648BC4 #C46D64 #BBC464

monochromatic

#304F7E #416CAA #648BC4 #90ACD5 #BDCDE6

Accessibility & contrast

On white

3.48

#648BC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#648BC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BC4

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BC4	#FFFFFF	#000000	##000000
##648BC4	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#758EC6

Deuteranopia (green-blind)

#6A85C3

Tritanopia (blue-blind)

#39989F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #648bc4;
/* rgb */ color: rgb(100, 139, 196);
/* oklch */ color: oklch(63.2% 0.097 257.8);

Tailwind

colors: {
  custom: {
    50: '#95acd6',
    500: '#648bc4',
    950: '#000000',
  },
}

SCSS

$custom: #648bc4;
$custom-light: #95acd6;
$custom-dark: #000000;

JSON

{
  "hex": "#648bc4",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 196
  },
  "hsl": {
    "h": 215.625,
    "s": 44.86,
    "l": 58.039
  },
  "oklch": {
    "l": 0.6317,
    "c": 0.09687,
    "h": 257.8
  },
  "luminance": 0.2516
}

Semantic roles & 50–950 ramp

primary

#648BC4

secondary

#D5C5AF

accent

#A053D5

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0E1014

muted

#7E7F83

Preview Lab

Preview with #648BC4

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

Preview Lab → · Contrast checker → · Palette generator →