#648FDB#648FDB

#648FDB is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.2% C 0.124 H 261.2°. Best body text is #000000 at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#648FDB
RGB	rgb(100, 143, 219)
HSL	hsl(218, 62%, 63%)
HSV	hsv(218, 54%, 86%)
CMYK	cmyk(54.3%, 34.7%, 0%, 14.1%)
CIE-LAB	lab(59.40, 7.12, -43.29)
CIE-LCH	lch(59.40, 43.87, 279.34°)
OKLab	oklab(65.21% -0.019 -0.1223)
OKLCH	oklch(65.21% 0.124 261.2)
XYZ	xyz(27.8598, 27.4666, 70.8376)
Luminance	0.2747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FDB #DBB064

analogous

#64CBDB #648FDB #7464DB

triadic

#648FDB #DB648F #8FDB64

tetradic

#648FDB #DB64CB #DBB064 #64DB74

square

#648FDB #DB64CB #DBB064 #64DB74

split-complementary

#648FDB #DB7464 #CBDB64

monochromatic

#2551A0 #326BCF #648FDB #96B3E7 #C7D7F2

Accessibility & contrast

On white

3.23

#648FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.49

#648FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FDB

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FDB	#FFFFFF	#000000	##000000
##648FDB	1.00	3.23	6.49	6.49
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.49	21.00	1.00	1.00
##000000	6.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7095DE

Deuteranopia (green-blind)

#628AD9

Tritanopia (blue-blind)

#1DA0AB

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #648fdb;
/* rgb */ color: rgb(100, 143, 219);
/* oklch */ color: oklch(65.2% 0.124 261.2);

Tailwind

colors: {
  custom: {
    50: '#98afe6',
    500: '#648fdb',
    950: '#000000',
  },
}

SCSS

$custom: #648fdb;
$custom-light: #98afe6;
$custom-dark: #000000;

JSON

{
  "hex": "#648fdb",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 219
  },
  "hsl": {
    "h": 218.319,
    "s": 62.304,
    "l": 62.549
  },
  "oklch": {
    "l": 0.65214,
    "c": 0.12373,
    "h": 261.2
  },
  "luminance": 0.27469
}

Semantic roles & 50–950 ramp

primary

#648FDB

secondary

#E3D3B8

accent

#8B1BCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648FDB

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

Preview Lab → · Contrast checker → · Palette generator →