#3F6BCE#3F6BCE
#3F6BCE is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.9% C 0.161 H 263.9°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3F6BCE |
|---|---|
| RGB | rgb(63, 107, 206) |
| HSL | hsl(222, 59%, 53%) |
| HSV | hsv(222, 69%, 81%) |
| CMYK | cmyk(69.4%, 48.1%, 0%, 19.2%) |
| CIE-LAB | lab(47.01, 17.88, -55.79) |
| CIE-LCH | lch(47.01, 58.58, 287.77°) |
| OKLab | oklab(54.93% -0.0172 -0.16) |
| OKLCH | oklch(54.93% 0.161 263.9) |
| XYZ | xyz(18.4442, 16.0265, 60.5019) |
| Luminance | 0.1603 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 2.77
Cornflower Blue
#5170D7
ΔE00 3.24
French Blue
#436BAD
ΔE00 3.93
Cerulean Blue
#056EEE
ΔE00 4.11
Medium Blue
#2C6FBB
ΔE00 4.86
Bright Blue
#0165FC
ΔE00 5.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F6BCE #CEA23F
analogous
#3FB3CE #3F6BCE #5A3FCE
triadic
#3F6BCE #CE3F6B #6BCE3F
tetradic
#3F6BCE #CE3FB3 #CEA23F #3FCE5A
square
#3F6BCE #CE3FB3 #CEA23F #3FCE5A
split-complementary
#3F6BCE #CE5A3F #B3CE3F
monochromatic
#1E3975 #2A50A6 #3F6BCE #7091DA #A1B6E7
Accessibility & contrast
On white
4.99
#3F6BCE on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.21
#3F6BCE on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3F6BCE
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F6BCE | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F6BCE | 1.00 | 4.99 | 4.21 | 4.99 |
| #FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3576D2
Deuteranopia (green-blind)
#0D69CC
Tritanopia (blue-blind)
#008292
Achromatopsia (no color)
#6F6F6F
Design tokens & code
CSS
--color: #3f6bce; /* rgb */ color: rgb(63, 107, 206); /* oklch */ color: oklch(54.9% 0.161 263.9);
Tailwind
colors: {
custom: {
50: '#8494de',
500: '#3f6bce',
950: '#000000',
},
}SCSS
$custom: #3f6bce; $custom-light: #8494de; $custom-dark: #000000;
JSON
{
"hex": "#3f6bce",
"rgb": {
"r": 63,
"g": 107,
"b": 206
},
"hsl": {
"h": 221.538,
"s": 59.336,
"l": 52.745
},
"oklch": {
"l": 0.54933,
"c": 0.1609,
"h": 263.9
},
"luminance": 0.16028
}Semantic roles & 50–950 ramp
primary
#3F6BCE
secondary
#D3C095
accent
#B245E3
background
#F8F9FD
surface
#F0F1FB
border
#CBCBD4
text
#0C0D15
muted
#7D7E83