#688CFB#688CFB

#688CFB is a light, vivid blue. Relative luminance 0.287; OKLCH L 66.6% C 0.169 H 268.1°. Best body text is #000000 at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#688CFB
RGB	rgb(104, 140, 251)
HSL	hsl(225, 95%, 70%)
HSV	hsv(225, 59%, 98%)
CMYK	cmyk(58.6%, 44.2%, 0%, 1.6%)
CIE-LAB	lab(60.48, 19.95, -59.29)
CIE-LCH	lch(60.48, 62.56, 288.60°)
OKLab	oklab(66.65% -0.0057 -0.169)
OKLCH	oklch(66.65% 0.169 268.1)
XYZ	xyz(32.4937, 28.6616, 95.0680)
Luminance	0.2866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CFB #FBD768

analogous

#68D6FB #688CFB #8E68FB

triadic

#688CFB #FB688C #8CFB68

tetradic

#688CFB #FB68D6 #FBD768 #68FB8E

square

#688CFB #FB68D6 #FBD768 #68FB8E

split-complementary

#688CFB #FB8E68 #D6FB68

monochromatic

#063CE3 #2C5FF9 #688CFB #A4B9FD #DFE7FE

Accessibility & contrast

On white

3.12

#688CFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.73

#688CFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CFB

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CFB	#FFFFFF	#000000	##000000
##688CFB	1.00	3.12	6.73	6.73
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.73	21.00	1.00	1.00
##000000	6.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5999FF

Deuteranopia (green-blind)

#438CF9

Tritanopia (blue-blind)

#00A5B7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #688cfb;
/* rgb */ color: rgb(104, 140, 251);
/* oklch */ color: oklch(66.6% 0.169 268.1);

Tailwind

colors: {
  custom: {
    50: '#9eadfd',
    500: '#688cfb',
    950: '#000000',
  },
}

SCSS

$custom: #688cfb;
$custom-light: #9eadfd;
$custom-dark: #000000;

JSON

{
  "hex": "#688cfb",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 251
  },
  "hsl": {
    "h": 225.306,
    "s": 94.839,
    "l": 69.608
  },
  "oklch": {
    "l": 0.66645,
    "c": 0.16915,
    "h": 268.1
  },
  "luminance": 0.28664
}

Semantic roles & 50–950 ramp

primary

#688CFB

secondary

#F4EACA

accent

#AD00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #688CFB

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

Preview Lab → · Contrast checker → · Palette generator →