#688EEF#688EEF

#688EEF is a light, vivid blue. Relative luminance 0.285; OKLCH L 66.3% C 0.151 H 266.3°. Best body text is #000000 at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#688EEF
RGB	rgb(104, 142, 239)
HSL	hsl(223, 81%, 67%)
HSV	hsv(223, 56%, 94%)
CMYK	cmyk(56.5%, 40.6%, 0%, 6.3%)
CIE-LAB	lab(60.35, 14.90, -52.88)
CIE-LCH	lch(60.35, 54.94, 285.73°)
OKLab	oklab(66.34% -0.0098 -0.1502)
OKLCH	oklch(66.34% 0.151 266.3)
XYZ	xyz(30.9566, 28.5186, 85.5179)
Luminance	0.2852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688EEF #EFC968

analogous

#68D2EF #688EEF #8668EF

triadic

#688EEF #EF688E #8EEF68

tetradic

#688EEF #EF68D2 #EFC968 #68EF86

square

#688EEF #EF68D2 #EFC968 #68EF86

split-complementary

#688EEF #EF8668 #D2EF68

monochromatic

#1547C7 #3165E9 #688EEF #9FB7F5 #D7E1FB

Accessibility & contrast

On white

3.13

#688EEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.70

#688EEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688EEF

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688EEF	#FFFFFF	#000000	##000000
##688EEF	1.00	3.13	6.70	6.70
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.70	21.00	1.00	1.00
##000000	6.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6598F3

Deuteranopia (green-blind)

#538CED

Tritanopia (blue-blind)

#00A3B3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #688eef;
/* rgb */ color: rgb(104, 142, 239);
/* oklch */ color: oklch(66.3% 0.151 266.3);

Tailwind

colors: {
  custom: {
    50: '#9caef5',
    500: '#688eef',
    950: '#000000',
  },
}

SCSS

$custom: #688eef;
$custom-light: #9caef5;
$custom-dark: #000000;

JSON

{
  "hex": "#688eef",
  "rgb": {
    "r": 104,
    "g": 142,
    "b": 239
  },
  "hsl": {
    "h": 223.111,
    "s": 80.838,
    "l": 67.255
  },
  "oklch": {
    "l": 0.66336,
    "c": 0.15055,
    "h": 266.3
  },
  "luminance": 0.28521
}

Semantic roles & 50–950 ramp

primary

#688EEF

secondary

#EFE3C4

accent

#A108DD

background

#FAFAFF

surface

#F4F4FE

border

#CECED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #688EEF

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

Preview Lab → · Contrast checker → · Palette generator →