#648AD9#648AD9

#648AD9 is a light, vivid blue. Relative luminance 0.259; OKLCH L 64.0% C 0.127 H 263.7°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#648AD9
RGB	rgb(100, 138, 217)
HSL	hsl(221, 61%, 62%)
HSV	hsv(221, 54%, 85%)
CMYK	cmyk(53.9%, 36.4%, 0%, 14.9%)
CIE-LAB	lab(57.94, 9.44, -44.49)
CIE-LCH	lch(57.94, 45.48, 281.98°)
OKLab	oklab(64.04% -0.0138 -0.1258)
OKLCH	oklch(64.04% 0.127 263.7)
XYZ	xyz(26.8642, 25.8940, 69.2146)
Luminance	0.2590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648AD9 #D9B364

analogous

#64C5D9 #648AD9 #7964D9

triadic

#648AD9 #D9648A #8AD964

tetradic

#648AD9 #D964C5 #D9B364 #64D979

square

#648AD9 #D964C5 #D9B364 #64D979

split-complementary

#648AD9 #D97964 #C5D964

monochromatic

#264D9C #3365CD #648AD9 #95AFE5 #C6D4F1

Accessibility & contrast

On white

3.40

#648AD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#648AD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648AD9

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648AD9	#FFFFFF	#000000	##000000
##648AD9	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A91DC

Deuteranopia (green-blind)

#5C86D7

Tritanopia (blue-blind)

#239BA7

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #648ad9;
/* rgb */ color: rgb(100, 138, 217);
/* oklch */ color: oklch(64.0% 0.127 263.7);

Tailwind

colors: {
  custom: {
    50: '#98abe5',
    500: '#648ad9',
    950: '#000000',
  },
}

SCSS

$custom: #648ad9;
$custom-light: #98abe5;
$custom-dark: #000000;

JSON

{
  "hex": "#648ad9",
  "rgb": {
    "r": 100,
    "g": 138,
    "b": 217
  },
  "hsl": {
    "h": 220.513,
    "s": 60.622,
    "l": 62.157
  },
  "oklch": {
    "l": 0.64043,
    "c": 0.12656,
    "h": 263.7
  },
  "luminance": 0.25896
}

Semantic roles & 50–950 ramp

primary

#648AD9

secondary

#E2D4B7

accent

#911DC8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648AD9

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

Preview Lab → · Contrast checker → · Palette generator →