#688AEC#688AEC

#688AEC is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.3% C 0.151 H 267.7°. Best body text is #000000 at 6.44:1 contrast (WCAG AA passes).

Color values

HEX#688AEC
RGBrgb(104, 138, 236)
HSLhsl(225, 78%, 67%)
HSVhsv(225, 56%, 93%)
CMYKcmyk(55.9%, 41.5%, 0%, 7.5%)
CIE-LABlab(59.13, 16.32, -53.16)
CIE-LCHlch(59.13, 55.61, 287.07°)
OKLaboklab(65.35% -0.0061 -0.1511)
OKLCHoklch(65.35% 0.151 267.7)
XYZxyz(29.9327, 27.1738, 83.0083)
Luminance0.2718 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#688AEC #ECCA68
analogous
#68CCEC #688AEC #8868EC
triadic
#688AEC #EC688A #8AEC68
tetradic
#688AEC #EC68CC #ECCA68 #68EC88
square
#688AEC #EC68CC #ECCA68 #68EC88
split-complementary
#688AEC #EC8868 #CCEC68
monochromatic
#1844C1 #3260E5 #688AEC #9EB4F3 #D5DEFA

Accessibility & contrast

On white

3.26
#688AEC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.44
#688AEC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688AEC
6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##688AEC#FFFFFF#000000##000000
##688AEC1.003.266.446.44
#FFFFFF3.261.0021.0021.00
#0000006.4421.001.001.00
##0000006.4421.001.001.00

Color blindness preview

Protanopia (red-blind)
#6095F0
Deuteranopia (green-blind)
#4F89EA
Tritanopia (blue-blind)
#0EA0AF
Achromatopsia (no color)
#8E8E8E

Design tokens & code

CSS
--color: #688aec;
/* rgb */ color: rgb(104, 138, 236);
/* oklch */ color: oklch(65.3% 0.151 267.7);
Tailwind
colors: {
  custom: {
    50: '#9cabf2',
    500: '#688aec',
    950: '#000000',
  },
}
SCSS
$custom: #688aec;
$custom-light: #9cabf2;
$custom-dark: #000000;
JSON
{
  "hex": "#688aec",
  "rgb": {
    "r": 104,
    "g": 138,
    "b": 236
  },
  "hsl": {
    "h": 224.545,
    "s": 77.647,
    "l": 66.667
  },
  "oklch": {
    "l": 0.65346,
    "c": 0.15121,
    "h": 267.7
  },
  "luminance": 0.27176
}

Semantic roles & 50–950 ramp

primary
#688AEC
secondary
#EDE2C3
accent
#A50CDA
background
#FAFAFE
surface
#F4F4FD
border
#CECED5
text
#0F1017
muted
#7F7F85

Preview Lab

Preview with #688AEC

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

Preview Lab → · Contrast checker → · Palette generator →

#688AEC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva