#688CDD#688CDD

#688CDD is a light, vivid blue. Relative luminance 0.269; OKLCH L 64.9% C 0.128 H 264.9°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#688CDD
RGB	rgb(104, 140, 221)
HSL	hsl(222, 63%, 64%)
HSV	hsv(222, 53%, 87%)
CMYK	cmyk(52.9%, 36.7%, 0%, 13.3%)
CIE-LAB	lab(58.90, 10.39, -45.19)
CIE-LCH	lch(58.90, 46.37, 282.94°)
OKLab	oklab(64.91% -0.0114 -0.1278)
OKLCH	oklch(64.91% 0.128 264.9)
XYZ	xyz(28.1338, 26.9176, 72.1057)
Luminance	0.2692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CDD #DDB968

analogous

#68C6DD #688CDD #7E68DD

triadic

#688CDD #DD688C #8CDD68

tetradic

#688CDD #DD68C6 #DDB968 #68DD7E

square

#688CDD #DD68C6 #DDB968 #68DD7E

split-complementary

#688CDD #DD7E68 #C6DD68

monochromatic

#254DA5 #3666D2 #688CDD #9AB2E8 #CCD8F3

Accessibility & contrast

On white

3.29

#688CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#688CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CDD

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CDD	#FFFFFF	#000000	##000000
##688CDD	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C93E0

Deuteranopia (green-blind)

#5E89DB

Tritanopia (blue-blind)

#2B9EAA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #688cdd;
/* rgb */ color: rgb(104, 140, 221);
/* oklch */ color: oklch(64.9% 0.128 264.9);

Tailwind

colors: {
  custom: {
    50: '#9aade8',
    500: '#688cdd',
    950: '#000000',
  },
}

SCSS

$custom: #688cdd;
$custom-light: #9aade8;
$custom-dark: #000000;

JSON

{
  "hex": "#688cdd",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 221
  },
  "hsl": {
    "h": 221.538,
    "s": 63.243,
    "l": 63.725
  },
  "oklch": {
    "l": 0.64911,
    "c": 0.12827,
    "h": 264.9
  },
  "luminance": 0.2692
}

Semantic roles & 50–950 ramp

primary

#688CDD

secondary

#E5D8BC

accent

#951ACB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #688CDD

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

Preview Lab → · Contrast checker → · Palette generator →