#688CEB#688CEB

#688CEB is a light, vivid blue. Relative luminance 0.277; OKLCH L 65.7% C 0.147 H 266.7°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#688CEB
RGB	rgb(104, 140, 235)
HSL	hsl(224, 77%, 66%)
HSV	hsv(224, 56%, 92%)
CMYK	cmyk(55.7%, 40.4%, 0%, 7.8%)
CIE-LAB	lab(59.61, 14.81, -51.85)
CIE-LCH	lch(59.61, 53.92, 285.94°)
OKLab	oklab(65.7% -0.0084 -0.1472)
OKLCH	oklch(65.7% 0.147 266.7)
XYZ	xyz(30.0774, 27.6951, 82.3419)
Luminance	0.2770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CEB #EBC768

analogous

#68CEEB #688CEB #8668EB

triadic

#688CEB #EB688C #8CEB68

tetradic

#688CEB #EB68CE #EBC768 #68EB86

square

#688CEB #EB68CE #EBC768 #68EB86

split-complementary

#688CEB #EB8668 #CEEB68

monochromatic

#1947BF #3263E4 #688CEB #9EB5F2 #D4DEF9

Accessibility & contrast

On white

3.21

#688CEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#688CEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CEB

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CEB	#FFFFFF	#000000	##000000
##688CEB	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6496EF

Deuteranopia (green-blind)

#538AE9

Tritanopia (blue-blind)

#10A1B0

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #688ceb;
/* rgb */ color: rgb(104, 140, 235);
/* oklch */ color: oklch(65.7% 0.147 266.7);

Tailwind

colors: {
  custom: {
    50: '#9cadf2',
    500: '#688ceb',
    950: '#000000',
  },
}

SCSS

$custom: #688ceb;
$custom-light: #9cadf2;
$custom-dark: #000000;

JSON

{
  "hex": "#688ceb",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 235
  },
  "hsl": {
    "h": 223.511,
    "s": 76.608,
    "l": 66.471
  },
  "oklch": {
    "l": 0.65696,
    "c": 0.14746,
    "h": 266.7
  },
  "luminance": 0.27697
}

Semantic roles & 50–950 ramp

primary

#688CEB

secondary

#EDE1C2

accent

#A10DD9

background

#FAFAFE

surface

#F4F4FD

border

#CECED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #688CEB

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

Preview Lab → · Contrast checker → · Palette generator →