#688CCF#688CCF
#688CCF is a light, moderate blue. Relative luminance 0.262; OKLCH L 64.2% C 0.109 H 262.2°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).
Color values
| HEX | #688CCF |
|---|---|
| RGB | rgb(104, 140, 207) |
| HSL | hsl(219, 52%, 61%) |
| HSV | hsv(219, 50%, 81%) |
| CMYK | cmyk(49.8%, 32.4%, 0%, 18.8%) |
| CIE-LAB | lab(58.23, 6.06, -38.40) |
| CIE-LCH | lch(58.23, 38.88, 278.96°) |
| OKLab | oklab(64.17% -0.0148 -0.108) |
| OKLCH | oklch(64.17% 0.109 262.2) |
| XYZ | xyz(26.3457, 26.2024, 62.6887) |
| Luminance | 0.2620 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Faded Blue
#658CBB
ΔE00 2.89
Soft Blue
#6488EA
ΔE00 3.23
Cornflowerblue
#6495ED
ΔE00 4.38
Dark Sky Blue
#448EE4
ΔE00 5.60
Dodger Blue
#3E82FC
ΔE00 5.98
Dusty Blue
#5A86AD
ΔE00 6.08
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#688CCF #CFAB68
analogous
#68BFCF #688CCF #7768CF
triadic
#688CCF #CF688C #8CCF68
tetradic
#688CCF #CF68BF #CFAB68 #68CF77
square
#688CCF #CF68BF #CFAB68 #68CF77
split-complementary
#688CCF #CF7768 #BFCF68
monochromatic
#2D508F #3C69BE #688CCF #96AFDE #C5D3ED
Accessibility & contrast
On white
3.36
#688CCF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.24
#688CCF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #688CCF
6.24:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##688CCF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##688CCF | 1.00 | 3.36 | 6.24 | 6.24 |
| #FFFFFF | 3.36 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.24 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.24 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7291D2
Deuteranopia (green-blind)
#6788CE
Tritanopia (blue-blind)
#3A9AA4
Achromatopsia (no color)
#8C8C8C
Design tokens & code
CSS
--color: #688ccf; /* rgb */ color: rgb(104, 140, 207); /* oklch */ color: oklch(64.2% 0.109 262.2);
Tailwind
colors: {
custom: {
50: '#99adde',
500: '#688ccf',
950: '#000000',
},
}SCSS
$custom: #688ccf; $custom-light: #99adde; $custom-dark: #000000;
JSON
{
"hex": "#688ccf",
"rgb": {
"r": 104,
"g": 140,
"b": 207
},
"hsl": {
"h": 219.029,
"s": 51.759,
"l": 60.98
},
"oklch": {
"l": 0.64172,
"c": 0.10901,
"h": 262.2
},
"luminance": 0.26204
}Semantic roles & 50–950 ramp
primary
#688CCF
secondary
#DDCFB6
accent
#8A26BF
background
#F9FAFD
surface
#F2F4FB
border
#CCCED4
text
#0E1015
muted
#7E7F83