#3F5FA4#3F5FA4
#3F5FA4 is a mid, moderate blue. Relative luminance 0.119; OKLCH L 49.6% C 0.117 H 263.9°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).
Color values
| HEX | #3F5FA4 |
|---|---|
| RGB | rgb(63, 95, 164) |
| HSL | hsl(221, 44%, 45%) |
| HSV | hsv(221, 62%, 64%) |
| CMYK | cmyk(61.6%, 42.1%, 0%, 35.7%) |
| CIE-LAB | lab(41.09, 10.48, -40.81) |
| CIE-LCH | lch(41.09, 42.13, 284.41°) |
| OKLab | oklab(49.56% -0.0124 -0.1161) |
| OKLCH | oklch(49.56% 0.117 263.9) |
| XYZ | xyz(12.8406, 11.9204, 36.7389) |
| Luminance | 0.1192 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dusky Blue
#475F94
ΔE00 2.71
Denim Blue
#3B5B92
ΔE00 2.72
French Blue
#436BAD
ΔE00 4.36
Denim (survey)
#3B638C
ΔE00 4.55
Denim
#1560BD
ΔE00 4.56
Light Navy Blue
#2E5A88
ΔE00 5.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F5FA4 #A4843F
analogous
#3F92A4 #3F5FA4 #523FA4
triadic
#3F5FA4 #A43F5F #5FA43F
tetradic
#3F5FA4 #A43F92 #A4843F #3FA452
square
#3F5FA4 #A43F92 #A4843F #3FA452
split-complementary
#3F5FA4 #A4523F #92A43F
monochromatic
#1D2C4C #2E4578 #3F5FA4 #5F7EC1 #8BA2D2
Accessibility & contrast
On white
6.20
#3F5FA4 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.38
#3F5FA4 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3F5FA4
6.20:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F5FA4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F5FA4 | 1.00 | 6.20 | 3.38 | 6.20 |
| #FFFFFF | 6.20 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.20 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4066A7
Deuteranopia (green-blind)
#325DA3
Tritanopia (blue-blind)
#006E79
Achromatopsia (no color)
#616161
Design tokens & code
CSS
--color: #3f5fa4; /* rgb */ color: rgb(63, 95, 164); /* oklch */ color: oklch(49.6% 0.117 263.9);
Tailwind
colors: {
custom: {
50: '#7d8cbf',
500: '#3f5fa4',
950: '#000000',
},
}SCSS
$custom: #3f5fa4; $custom-light: #7d8cbf; $custom-dark: #000000;
JSON
{
"hex": "#3f5fa4",
"rgb": {
"r": 63,
"g": 95,
"b": 164
},
"hsl": {
"h": 220.99,
"s": 44.493,
"l": 44.51
},
"oklch": {
"l": 0.49563,
"c": 0.11679,
"h": 263.9
},
"luminance": 0.11922
}Semantic roles & 50–950 ramp
primary
#3F5FA4
secondary
#BDAA82
accent
#AB54D4
background
#F8F8FB
surface
#EFF0F7
border
#CACBD0
text
#0A0C12
muted
#7C7D81