#688CF0#688CF0

#688CF0 is a light, vivid blue. Relative luminance 0.280; OKLCH L 66.0% C 0.154 H 267.2°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#688CF0
RGB	rgb(104, 140, 240)
HSL	hsl(224, 82%, 67%)
HSV	hsv(224, 57%, 94%)
CMYK	cmyk(56.7%, 41.7%, 0%, 5.9%)
CIE-LAB	lab(59.88, 16.41, -54.19)
CIE-LCH	lch(59.88, 56.62, 286.85°)
OKLab	oklab(65.99% -0.0075 -0.1541)
OKLCH	oklch(65.99% 0.154 267.2)
XYZ	xyz(30.8099, 27.9881, 86.1998)
Luminance	0.2799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CF0 #F0CC68

analogous

#68D0F0 #688CF0 #8868F0

triadic

#688CF0 #F0688C #8CF068

tetradic

#688CF0 #F068D0 #F0CC68 #68F088

square

#688CF0 #F068D0 #F0CC68 #68F088

split-complementary

#688CF0 #F08868 #D0F068

monochromatic

#1444CA #3062EA #688CF0 #A0B6F6 #D7E1FB

Accessibility & contrast

On white

3.18

#688CF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#688CF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CF0

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CF0	#FFFFFF	#000000	##000000
##688CF0	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6197F4

Deuteranopia (green-blind)

#4F8BEE

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #688cf0;
/* rgb */ color: rgb(104, 140, 240);
/* oklch */ color: oklch(66.0% 0.154 267.2);

Tailwind

colors: {
  custom: {
    50: '#9dadf5',
    500: '#688cf0',
    950: '#000000',
  },
}

SCSS

$custom: #688cf0;
$custom-light: #9dadf5;
$custom-dark: #000000;

JSON

{
  "hex": "#688cf0",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 240
  },
  "hsl": {
    "h": 224.118,
    "s": 81.928,
    "l": 67.451
  },
  "oklch": {
    "l": 0.65986,
    "c": 0.15427,
    "h": 267.2
  },
  "luminance": 0.2799
}

Semantic roles & 50–950 ramp

primary

#688CF0

secondary

#EFE4C5

accent

#A507DE

background

#FAFAFF

surface

#F4F4FE

border

#CECED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #688CF0

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

Preview Lab → · Contrast checker → · Palette generator →