#688AFB#688AFB

#688AFB is a light, vivid blue. Relative luminance 0.281; OKLCH L 66.2% C 0.172 H 268.8°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#688AFB
RGB	rgb(104, 138, 251)
HSL	hsl(226, 95%, 70%)
HSV	hsv(226, 59%, 98%)
CMYK	cmyk(58.6%, 45%, 0%, 1.6%)
CIE-LAB	lab(59.96, 21.15, -60.12)
CIE-LCH	lch(59.96, 63.73, 289.38°)
OKLab	oklab(66.25% -0.0036 -0.1715)
OKLCH	oklch(66.25% 0.172 268.8)
XYZ	xyz(32.2041, 28.0824, 94.9715)
Luminance	0.2808 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688AFB #FBD968

analogous

#68D4FB #688AFB #8F68FB

triadic

#688AFB #FB688A #8AFB68

tetradic

#688AFB #FB68D4 #FBD968 #68FB8F

square

#688AFB #FB68D4 #FBD968 #68FB8F

split-complementary

#688AFB #FB8F68 #D4FB68

monochromatic

#0639E3 #2C5CF9 #688AFB #A4B8FD #DFE6FE

Accessibility & contrast

On white

3.17

#688AFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#688AFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688AFB

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688AFB	#FFFFFF	#000000	##000000
##688AFB	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5597FF

Deuteranopia (green-blind)

#3F8AF9

Tritanopia (blue-blind)

#00A3B6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #688afb;
/* rgb */ color: rgb(104, 138, 251);
/* oklch */ color: oklch(66.2% 0.172 268.8);

Tailwind

colors: {
  custom: {
    50: '#9eabfd',
    500: '#688afb',
    950: '#000000',
  },
}

SCSS

$custom: #688afb;
$custom-light: #9eabfd;
$custom-dark: #000000;

JSON

{
  "hex": "#688afb",
  "rgb": {
    "r": 104,
    "g": 138,
    "b": 251
  },
  "hsl": {
    "h": 226.122,
    "s": 94.839,
    "l": 69.608
  },
  "oklch": {
    "l": 0.66249,
    "c": 0.17155,
    "h": 268.8
  },
  "luminance": 0.28085
}

Semantic roles & 50–950 ramp

primary

#688AFB

secondary

#F4EBCA

accent

#B000E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #688AFB

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

Preview Lab → · Contrast checker → · Palette generator →