#3F5AC8#3F5AC8
#3F5AC8 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.0% C 0.174 H 269.0°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3F5AC8 |
|---|---|
| RGB | rgb(63, 90, 200) |
| HSL | hsl(228, 55%, 52%) |
| HSV | hsv(228, 69%, 78%) |
| CMYK | cmyk(68.5%, 55%, 0%, 21.6%) |
| CIE-LAB | lab(42.06, 26.56, -60.33) |
| CIE-LCH | lch(42.06, 65.92, 293.76°) |
| OKLab | oklab(51.05% -0.003 -0.1736) |
| OKLCH | oklch(51.05% 0.174 269) |
| XYZ | xyz(16.1278, 12.5377, 56.2024) |
| Luminance | 0.1254 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 3.65
Azul
#1D5DEC
ΔE00 4.57
Sapphire
#0F52BA
ΔE00 5.11
Iris
#6258C4
ΔE00 5.94
Royal Blue
#4169E1
ΔE00 5.96
Denim
#1560BD
ΔE00 6.11
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F5AC8 #C8AD3F
analogous
#3F9FC8 #3F5AC8 #693FC8
triadic
#3F5AC8 #C83F5A #5AC83F
tetradic
#3F5AC8 #C83F9F #C8AD3F #3FC869
square
#3F5AC8 #C83F9F #C8AD3F #3FC869
split-complementary
#3F5AC8 #C8693F #9FC83F
monochromatic
#1F2F6D #2D439D #3F5AC8 #6F83D6 #9EACE3
Accessibility & contrast
On white
5.99
#3F5AC8 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#3F5AC8 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3F5AC8
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F5AC8 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F5AC8 | 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)
#006ACC
Deuteranopia (green-blind)
#005DC6
Tritanopia (blue-blind)
#007588
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #3f5ac8; /* rgb */ color: rgb(63, 90, 200); /* oklch */ color: oklch(51.0% 0.174 269.0);
Tailwind
colors: {
custom: {
50: '#8488d9',
500: '#3f5ac8',
950: '#000000',
},
}SCSS
$custom: #3f5ac8; $custom-light: #8488d9; $custom-dark: #000000;
JSON
{
"hex": "#3f5ac8",
"rgb": {
"r": 63,
"g": 90,
"b": 200
},
"hsl": {
"h": 228.175,
"s": 55.466,
"l": 51.569
},
"oklch": {
"l": 0.5105,
"c": 0.17365,
"h": 269
},
"luminance": 0.12539
}Semantic roles & 50–950 ramp
primary
#3F5AC8
secondary
#D0C493
accent
#C149DF
background
#F8F8FD
surface
#F0EFFB
border
#CBCAD4
text
#0C0B15
muted
#7D7C83