#648DDD#648DDD

#648DDD is a light, vivid blue. Relative luminance 0.270; OKLCH L 64.9% C 0.129 H 262.7°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#648DDD
RGB	rgb(100, 141, 221)
HSL	hsl(220, 64%, 63%)
HSV	hsv(220, 55%, 87%)
CMYK	cmyk(54.8%, 36.2%, 0%, 13.3%)
CIE-LAB	lab(58.95, 8.93, -45.12)
CIE-LCH	lch(58.95, 46.00, 281.20°)
OKLab	oklab(64.9% -0.0163 -0.1276)
OKLCH	oklch(64.9% 0.129 262.7)
XYZ	xyz(27.8271, 26.9774, 72.1334)
Luminance	0.2698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648DDD #DDB464

analogous

#64CADD #648DDD #7764DD

triadic

#648DDD #DD648D #8DDD64

tetradic

#648DDD #DD64CA #DDB464 #64DD77

square

#648DDD #DD64CA #DDB464 #64DD77

split-complementary

#648DDD #DD7764 #CADD64

monochromatic

#244FA3 #3268D2 #648DDD #96B2E8 #C8D7F3

Accessibility & contrast

On white

3.28

#648DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#648DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648DDD

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648DDD	#FFFFFF	#000000	##000000
##648DDD	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D94E0

Deuteranopia (green-blind)

#5E89DB

Tritanopia (blue-blind)

#1A9FAA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #648ddd;
/* rgb */ color: rgb(100, 141, 221);
/* oklch */ color: oklch(64.9% 0.129 262.7);

Tailwind

colors: {
  custom: {
    50: '#98aee8',
    500: '#648ddd',
    950: '#000000',
  },
}

SCSS

$custom: #648ddd;
$custom-light: #98aee8;
$custom-dark: #000000;

JSON

{
  "hex": "#648ddd",
  "rgb": {
    "r": 100,
    "g": 141,
    "b": 221
  },
  "hsl": {
    "h": 219.669,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.64896,
    "c": 0.12864,
    "h": 262.7
  },
  "luminance": 0.2698
}

Semantic roles & 50–950 ramp

primary

#648DDD

secondary

#E4D5B9

accent

#8F1ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648DDD

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

Preview Lab → · Contrast checker → · Palette generator →