#163A78#163A78
#163A78 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.114 H 260.5°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #163A78 |
|---|---|
| RGB | rgb(22, 58, 120) |
| HSL | hsl(218, 69%, 28%) |
| HSV | hsv(218, 82%, 47%) |
| CMYK | cmyk(81.7%, 51.7%, 0%, 52.9%) |
| CIE-LAB | lab(25.42, 11.68, -39.10) |
| CIE-LCH | lch(25.42, 40.81, 286.64°) |
| OKLab | oklab(36.09% -0.0188 -0.1125) |
| OKLCH | oklch(36.09% 0.114 260.5) |
| XYZ | xyz(5.2329, 4.5521, 18.3685) |
| Luminance | 0.0455 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine Blue
#01386A
ΔE00 3.17
Darkish Blue
#014182
ΔE00 3.33
Twilight Blue
#0A437A
ΔE00 4.07
Marine
#042E60
ΔE00 4.60
Cobalt (survey)
#1E488F
ΔE00 5.03
Prussian Blue
#004577
ΔE00 5.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#163A78 #785416
analogous
#166B78 #163A78 #231678
triadic
#163A78 #78163A #3A7816
tetradic
#163A78 #78166B #785416 #167823
square
#163A78 #78166B #785416 #167823
split-complementary
#163A78 #782316 #6B7816
monochromatic
#050C1A #0D2144 #163A78 #1F53AC #2F6ED9
Accessibility & contrast
On white
10.99
#163A78 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#163A78 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #163A78
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##163A78 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##163A78 | 1.00 | 10.99 | 1.91 | 10.99 |
| #FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#15417A
Deuteranopia (green-blind)
#003877
Tritanopia (blue-blind)
#004953
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #163a78; /* rgb */ color: rgb(22, 58, 120); /* oklch */ color: oklch(36.1% 0.114 260.5);
Tailwind
colors: {
custom: {
50: '#646f9f',
500: '#163a78',
950: '#000000',
},
}SCSS
$custom: #163a78; $custom-light: #646f9f; $custom-dark: #000000;
JSON
{
"hex": "#163a78",
"rgb": {
"r": 22,
"g": 58,
"b": 120
},
"hsl": {
"h": 217.959,
"s": 69.014,
"l": 27.843
},
"oklch": {
"l": 0.36088,
"c": 0.11403,
"h": 260.5
},
"luminance": 0.04553
}Semantic roles & 50–950 ramp
primary
#163A78
secondary
#AD843C
accent
#AB3CEC
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06070E
muted
#7A7A7E