#3F668F#3F668F
#3F668F is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 50.0% C 0.080 H 250.8°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3F668F |
|---|---|
| RGB | rgb(63, 102, 143) |
| HSL | hsl(211, 39%, 40%) |
| HSV | hsv(211, 56%, 56%) |
| CMYK | cmyk(55.9%, 28.7%, 0%, 43.9%) |
| CIE-LAB | lab(42.06, -1.15, -26.74) |
| CIE-LCH | lch(42.06, 26.77, 267.54°) |
| OKLab | oklab(49.97% -0.0261 -0.0751) |
| OKLCH | oklch(49.97% 0.08 250.8) |
| XYZ | xyz(11.7574, 12.5417, 27.7825) |
| Luminance | 0.1254 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Denim (survey)
#3B638C
ΔE00 1.13
Ugly Blue
#31668A
ΔE00 3.78
Light Navy Blue
#2E5A88
ΔE00 4.35
French Blue
#436BAD
ΔE00 4.45
Muted Blue
#3B719F
ΔE00 4.56
Denim Blue
#3B5B92
ΔE00 4.60
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F668F #8F683F
analogous
#3F8E8F #3F668F #403F8F
triadic
#3F668F #8F3F66 #668F3F
tetradic
#3F668F #8F3F8E #8F683F #3F8F40
square
#3F668F #8F3F8E #8F683F #3F8F40
split-complementary
#3F668F #8F403F #8E8F3F
monochromatic
#1A293A #2C4865 #3F668F #5684B5 #81A3C7
Accessibility & contrast
On white
5.99
#3F668F on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#3F668F on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3F668F
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F668F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F668F | 1.00 | 5.99 | 3.51 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#556891
Deuteranopia (green-blind)
#4B608E
Tritanopia (blue-blind)
#0A6F74
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #3f668f; /* rgb */ color: rgb(63, 102, 143); /* oklch */ color: oklch(50.0% 0.080 250.8);
Tailwind
colors: {
custom: {
50: '#7a91b0',
500: '#3f668f',
950: '#000000',
},
}SCSS
$custom: #3f668f; $custom-light: #7a91b0; $custom-dark: #000000;
JSON
{
"hex": "#3f668f",
"rgb": {
"r": 63,
"g": 102,
"b": 143
},
"hsl": {
"h": 210.75,
"s": 38.835,
"l": 40.392
},
"oklch": {
"l": 0.49965,
"c": 0.0795,
"h": 250.8
},
"luminance": 0.12543
}Semantic roles & 50–950 ramp
primary
#3F668F
secondary
#B29678
accent
#9559CF
background
#F7F8FA
surface
#EEF0F4
border
#C9CBCE
text
#0A0C10
muted
#7C7D7F