#688DDD#688DDD

#688DDD is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.1% C 0.127 H 264.3°. Best body text is #000000 at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#688DDD
RGB	rgb(104, 141, 221)
HSL	hsl(221, 63%, 64%)
HSV	hsv(221, 53%, 87%)
CMYK	cmyk(52.9%, 36.2%, 0%, 13.3%)
CIE-LAB	lab(59.17, 9.79, -44.76)
CIE-LCH	lch(59.17, 45.82, 282.34°)
OKLab	oklab(65.12% -0.0125 -0.1265)
OKLCH	oklch(65.12% 0.127 264.3)
XYZ	xyz(28.2806, 27.2112, 72.1546)
Luminance	0.2721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688DDD #DDB868

analogous

#68C7DD #688DDD #7D68DD

triadic

#688DDD #DD688D #8DDD68

tetradic

#688DDD #DD68C7 #DDB868 #68DD7D

square

#688DDD #DD68C7 #DDB868 #68DD7D

split-complementary

#688DDD #DD7D68 #C7DD68

monochromatic

#254EA5 #3667D2 #688DDD #9AB3E8 #CCD8F3

Accessibility & contrast

On white

3.26

#688DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.44

#688DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688DDD

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688DDD	#FFFFFF	#000000	##000000
##688DDD	1.00	3.26	6.44	6.44
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.44	21.00	1.00	1.00
##000000	6.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D94E0

Deuteranopia (green-blind)

#5F8ADB

Tritanopia (blue-blind)

#2B9EAA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #688ddd;
/* rgb */ color: rgb(104, 141, 221);
/* oklch */ color: oklch(65.1% 0.127 264.3);

Tailwind

colors: {
  custom: {
    50: '#9aaee8',
    500: '#688ddd',
    950: '#000000',
  },
}

SCSS

$custom: #688ddd;
$custom-light: #9aaee8;
$custom-dark: #000000;

JSON

{
  "hex": "#688ddd",
  "rgb": {
    "r": 104,
    "g": 141,
    "b": 221
  },
  "hsl": {
    "h": 221.026,
    "s": 63.243,
    "l": 63.725
  },
  "oklch": {
    "l": 0.65121,
    "c": 0.12713,
    "h": 264.3
  },
  "luminance": 0.27213
}

Semantic roles & 50–950 ramp

primary

#688DDD

secondary

#E5D8BC

accent

#931ACB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #688DDD

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

Preview Lab → · Contrast checker → · Palette generator →