#3F4E83#3F4E83
#3F4E83 is a dark, moderate blue. Relative luminance 0.081; OKLCH L 43.7% C 0.090 H 270.4°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3F4E83 |
|---|---|
| RGB | rgb(63, 78, 131) |
| HSL | hsl(227, 35%, 38%) |
| HSV | hsv(227, 52%, 51%) |
| CMYK | cmyk(51.9%, 40.5%, 0%, 48.6%) |
| CIE-LAB | lab(34.28, 10.07, -31.68) |
| CIE-LCH | lch(34.28, 33.24, 287.63°) |
| OKLab | oklab(43.71% 0.0007 -0.0896) |
| OKLCH | oklch(43.71% 0.09 270.4) |
| XYZ | xyz(8.8697, 8.1437, 22.5728) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Twilight
#4E518B
ΔE00 3.49
Dusk
#4E5481
ΔE00 3.94
Cobalt (survey)
#1E488F
ΔE00 5.54
Denim Blue
#3B5B92
ΔE00 5.63
Dusky Blue
#475F94
ΔE00 6.02
Dusk Blue
#26538D
ΔE00 6.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F4E83 #83743F
analogous
#3F7083 #3F4E83 #523F83
triadic
#3F4E83 #833F4E #4E833F
tetradic
#3F4E83 #833F70 #83743F #3F8352
square
#3F4E83 #833F70 #83743F #3F8352
split-complementary
#3F4E83 #83523F #70833F
monochromatic
#171D30 #2B355A #3F4E83 #5367AC #7C8BC0
Accessibility & contrast
On white
7.99
#3F4E83 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#3F4E83 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F4E83
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F4E83 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F4E83 | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#395485
Deuteranopia (green-blind)
#324E82
Tritanopia (blue-blind)
#225962
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #3f4e83; /* rgb */ color: rgb(63, 78, 131); /* oklch */ color: oklch(43.7% 0.090 270.4);
Tailwind
colors: {
custom: {
50: '#797fa7',
500: '#3f4e83',
950: '#000000',
},
}SCSS
$custom: #3f4e83; $custom-light: #797fa7; $custom-dark: #000000;
JSON
{
"hex": "#3f4e83",
"rgb": {
"r": 63,
"g": 78,
"b": 131
},
"hsl": {
"h": 226.765,
"s": 35.052,
"l": 38.039
},
"oklch": {
"l": 0.43706,
"c": 0.08959,
"h": 270.4
},
"luminance": 0.08144
}Semantic roles & 50–950 ramp
primary
#3F4E83
secondary
#AA9E73
accent
#B35DCB
background
#F7F7FA
surface
#EEEEF4
border
#C9C9CE
text
#090A0F
muted
#7B7C7F