#648FD4#648FD4

#648FD4 is a light, moderate blue. Relative luminance 0.271; OKLCH L 64.8% C 0.114 H 259.5°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#648FD4
RGB	rgb(100, 143, 212)
HSL	hsl(217, 57%, 61%)
HSV	hsv(217, 53%, 83%)
CMYK	cmyk(52.8%, 32.5%, 0%, 16.9%)
CIE-LAB	lab(59.07, 4.93, -39.90)
CIE-LCH	lch(59.07, 40.20, 277.04°)
OKLab	oklab(64.85% -0.0208 -0.1124)
OKLCH	oklch(64.85% 0.114 259.5)
XYZ	xyz(26.9576, 27.1057, 66.0859)
Luminance	0.2711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FD4 #D4A964

analogous

#64C7D4 #648FD4 #7164D4

triadic

#648FD4 #D4648F #8FD464

tetradic

#648FD4 #D464C7 #D4A964 #64D471

square

#648FD4 #D464C7 #D4A964 #64D471

split-complementary

#648FD4 #D47164 #C7D464

monochromatic

#295294 #366DC4 #648FD4 #94B2E1 #C4D4EF

Accessibility & contrast

On white

3.27

#648FD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#648FD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FD4

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FD4	#FFFFFF	#000000	##000000
##648FD4	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7494D7

Deuteranopia (green-blind)

#6689D3

Tritanopia (blue-blind)

#289EA8

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #648fd4;
/* rgb */ color: rgb(100, 143, 212);
/* oklch */ color: oklch(64.8% 0.114 259.5);

Tailwind

colors: {
  custom: {
    50: '#97afe1',
    500: '#648fd4',
    950: '#000000',
  },
}

SCSS

$custom: #648fd4;
$custom-light: #97afe1;
$custom-dark: #000000;

JSON

{
  "hex": "#648fd4",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 212
  },
  "hsl": {
    "h": 216.964,
    "s": 56.566,
    "l": 61.176
  },
  "oklch": {
    "l": 0.64847,
    "c": 0.1143,
    "h": 259.5
  },
  "luminance": 0.27108
}

Semantic roles & 50–950 ramp

primary

#648FD4

secondary

#DFCFB5

accent

#8621C4

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648FD4

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

Preview Lab → · Contrast checker → · Palette generator →