#6488DD#6488DD

#6488DD is a light, vivid blue. Relative luminance 0.255; OKLCH L 63.8% C 0.134 H 265.4°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#6488DD
RGB	rgb(100, 136, 221)
HSL	hsl(222, 64%, 63%)
HSV	hsv(222, 55%, 87%)
CMYK	cmyk(54.8%, 38.5%, 0%, 13.3%)
CIE-LAB	lab(57.59, 11.90, -47.27)
CIE-LCH	lch(57.59, 48.74, 284.13°)
OKLab	oklab(63.84% -0.0107 -0.1339)
OKLCH	oklch(63.84% 0.134 265.4)
XYZ	xyz(27.1064, 25.5360, 71.8931)
Luminance	0.2554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6488DD #DDB964

analogous

#64C4DD #6488DD #7C64DD

triadic

#6488DD #DD6488 #88DD64

tetradic

#6488DD #DD64C4 #DDB964 #64DD7C

square

#6488DD #DD64C4 #DDB964 #64DD7C

split-complementary

#6488DD #DD7C64 #C4DD64

monochromatic

#244AA3 #3261D2 #6488DD #96AFE8 #C8D5F3

Accessibility & contrast

On white

3.44

#6488DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#6488DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6488DD

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6488DD	#FFFFFF	#000000	##000000
##6488DD	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6590E0

Deuteranopia (green-blind)

#5685DB

Tritanopia (blue-blind)

#1C9BA8

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #6488dd;
/* rgb */ color: rgb(100, 136, 221);
/* oklch */ color: oklch(63.8% 0.134 265.4);

Tailwind

colors: {
  custom: {
    50: '#98aae8',
    500: '#6488dd',
    950: '#000000',
  },
}

SCSS

$custom: #6488dd;
$custom-light: #98aae8;
$custom-dark: #000000;

JSON

{
  "hex": "#6488dd",
  "rgb": {
    "r": 100,
    "g": 136,
    "b": 221
  },
  "hsl": {
    "h": 222.149,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.63844,
    "c": 0.13437,
    "h": 265.4
  },
  "luminance": 0.25538
}

Semantic roles & 50–950 ramp

primary

#6488DD

secondary

#E4D7B9

accent

#971ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6488DD

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

Preview Lab → · Contrast checker → · Palette generator →