#688DDF#688DDF

#688DDF is a light, vivid blue. Relative luminance 0.273; OKLCH L 65.2% C 0.130 H 264.7°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#688DDF
RGB	rgb(104, 141, 223)
HSL	hsl(221, 65%, 64%)
HSV	hsv(221, 53%, 87%)
CMYK	cmyk(53.4%, 36.8%, 0%, 12.5%)
CIE-LAB	lab(59.27, 10.42, -45.72)
CIE-LCH	lch(59.27, 46.90, 282.84°)
OKLab	oklab(65.23% -0.0121 -0.1293)
OKLCH	oklch(65.23% 0.13 264.7)
XYZ	xyz(28.5486, 27.3184, 73.5663)
Luminance	0.2732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688DDF #DFBA68

analogous

#68C8DF #688DDF #7F68DF

triadic

#688DDF #DF688D #8DDF68

tetradic

#688DDF #DF68C8 #DFBA68 #68DF7F

square

#688DDF #DF68C8 #DFBA68 #68DF7F

split-complementary

#688DDF #DF7F68 #C8DF68

monochromatic

#244DA9 #3667D4 #688DDF #9BB3EA #CDD9F4

Accessibility & contrast

On white

3.25

#688DDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#688DDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688DDF

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688DDF	#FFFFFF	#000000	##000000
##688DDF	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C95E2

Deuteranopia (green-blind)

#5E8ADD

Tritanopia (blue-blind)

#289FAB

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #688ddf;
/* rgb */ color: rgb(104, 141, 223);
/* oklch */ color: oklch(65.2% 0.130 264.7);

Tailwind

colors: {
  custom: {
    50: '#9aaee9',
    500: '#688ddf',
    950: '#000000',
  },
}

SCSS

$custom: #688ddf;
$custom-light: #9aaee9;
$custom-dark: #000000;

JSON

{
  "hex": "#688ddf",
  "rgb": {
    "r": 104,
    "g": 141,
    "b": 223
  },
  "hsl": {
    "h": 221.345,
    "s": 65.027,
    "l": 64.118
  },
  "oklch": {
    "l": 0.6523,
    "c": 0.12987,
    "h": 264.7
  },
  "luminance": 0.27321
}

Semantic roles & 50–950 ramp

primary

#688DDF

secondary

#E6D9BD

accent

#9519CD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #688DDF

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

Preview Lab → · Contrast checker → · Palette generator →