#3F5DCA#3F5DCA
#3F5DCA is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.8% C 0.173 H 268.2°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #3F5DCA |
|---|---|
| RGB | rgb(63, 93, 202) |
| HSL | hsl(227, 57%, 52%) |
| HSV | hsv(227, 69%, 79%) |
| CMYK | cmyk(68.8%, 54%, 0%, 20.8%) |
| CIE-LAB | lab(42.99, 25.36, -59.99) |
| CIE-LCH | lch(42.99, 65.12, 292.91°) |
| OKLab | oklab(51.79% -0.0054 -0.1725) |
| OKLCH | oklch(51.79% 0.173 268.2) |
| XYZ | xyz(16.6212, 13.1481, 57.5275) |
| Luminance | 0.1315 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 3.99
Azul
#1D5DEC
ΔE00 4.11
Royal Blue
#4169E1
ΔE00 5.00
Sapphire
#0F52BA
ΔE00 5.54
Denim
#1560BD
ΔE00 5.63
French Blue
#436BAD
ΔE00 6.35
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F5DCA #CAAC3F
analogous
#3FA3CA #3F5DCA #663FCA
triadic
#3F5DCA #CA3F5D #5DCA3F
tetradic
#3F5DCA #CA3FA3 #CAAC3F #3FCA66
square
#3F5DCA #CA3FA3 #CAAC3F #3FCA66
split-complementary
#3F5DCA #CA663F #A3CA3F
monochromatic
#1F3070 #2C45A0 #3F5DCA #6F85D7 #9FAEE4
Accessibility & contrast
On white
5.79
#3F5DCA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.63
#3F5DCA on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3F5DCA
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F5DCA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F5DCA | 1.00 | 5.79 | 3.63 | 5.79 |
| #FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#066CCE
Deuteranopia (green-blind)
#005FC8
Tritanopia (blue-blind)
#00778A
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #3f5dca; /* rgb */ color: rgb(63, 93, 202); /* oklch */ color: oklch(51.8% 0.173 268.2);
Tailwind
colors: {
custom: {
50: '#848adb',
500: '#3f5dca',
950: '#000000',
},
}SCSS
$custom: #3f5dca; $custom-light: #848adb; $custom-dark: #000000;
JSON
{
"hex": "#3f5dca",
"rgb": {
"r": 63,
"g": 93,
"b": 202
},
"hsl": {
"h": 227.05,
"s": 56.735,
"l": 51.961
},
"oklch": {
"l": 0.51793,
"c": 0.17264,
"h": 268.2
},
"luminance": 0.1315
}Semantic roles & 50–950 ramp
primary
#3F5DCA
secondary
#D1C494
accent
#BF48E0
background
#F8F8FD
surface
#F0F0FB
border
#CBCBD4
text
#0C0B15
muted
#7D7C83