#3F6DC5#3F6DC5
#3F6DC5 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.8% C 0.146 H 262.0°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3F6DC5 |
|---|---|
| RGB | rgb(63, 109, 197) |
| HSL | hsl(219, 54%, 51%) |
| HSV | hsv(219, 68%, 77%) |
| CMYK | cmyk(68%, 44.7%, 0%, 22.7%) |
| CIE-LAB | lab(47.01, 13.38, -50.63) |
| CIE-LCH | lch(47.01, 52.37, 284.80°) |
| OKLab | oklab(54.75% -0.0204 -0.1448) |
| OKLCH | oklch(54.75% 0.146 262) |
| XYZ | xyz(17.5930, 16.0235, 54.9782) |
| Luminance | 0.1603 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
French Blue
#436BAD
ΔE00 2.87
Medium Blue
#2C6FBB
ΔE00 3.65
Cornflower Blue
#5170D7
ΔE00 4.02
Royal Blue
#4169E1
ΔE00 4.15
Mid Blue
#276AB3
ΔE00 4.39
Cerulean Blue
#056EEE
ΔE00 4.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F6DC5 #C5973F
analogous
#3FB0C5 #3F6DC5 #543FC5
triadic
#3F6DC5 #C53F6D #6DC53F
tetradic
#3F6DC5 #C53FB0 #C5973F #3FC554
square
#3F6DC5 #C53FB0 #C5973F #3FC554
split-complementary
#3F6DC5 #C5543F #B0C53F
monochromatic
#20396A #2E5399 #3F6DC5 #6E91D3 #9DB4E1
Accessibility & contrast
On white
4.99
#3F6DC5 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.20
#3F6DC5 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3F6DC5
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F6DC5 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F6DC5 | 1.00 | 4.99 | 4.20 | 4.99 |
| #FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.20 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4276C8
Deuteranopia (green-blind)
#296AC3
Tritanopia (blue-blind)
#00818F
Achromatopsia (no color)
#6F6F6F
Design tokens & code
CSS
--color: #3f6dc5; /* rgb */ color: rgb(63, 109, 197); /* oklch */ color: oklch(54.8% 0.146 262.0);
Tailwind
colors: {
custom: {
50: '#8396d7',
500: '#3f6dc5',
950: '#000000',
},
}SCSS
$custom: #3f6dc5; $custom-light: #8396d7; $custom-dark: #000000;
JSON
{
"hex": "#3f6dc5",
"rgb": {
"r": 63,
"g": 109,
"b": 197
},
"hsl": {
"h": 219.403,
"s": 53.6,
"l": 50.98
},
"oklch": {
"l": 0.54751,
"c": 0.14621,
"h": 262
},
"luminance": 0.16025
}Semantic roles & 50–950 ramp
primary
#3F6DC5
secondary
#CEB992
accent
#AB4BDD
background
#F8F9FD
surface
#F0F1FA
border
#CBCBD3
text
#0C0D14
muted
#7D7E83