#163B6B#163B6B
#163B6B is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.094 H 256.3°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).
Color values
| HEX | #163B6B |
|---|---|
| RGB | rgb(22, 59, 107) |
| HSL | hsl(214, 66%, 25%) |
| HSV | hsv(214, 79%, 42%) |
| CMYK | cmyk(79.4%, 44.9%, 0%, 58%) |
| CIE-LAB | lab(24.83, 5.54, -31.76) |
| CIE-LCH | lch(24.83, 32.24, 279.90°) |
| OKLab | oklab(35.34% -0.0222 -0.0909) |
| OKLCH | oklch(35.34% 0.094 256.3) |
| XYZ | xyz(4.5477, 4.3595, 14.5089) |
| Luminance | 0.0436 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Marine Blue
#01386A
ΔE00 1.70
Twilight Blue
#0A437A
ΔE00 3.44
Darkish Blue
#014182
ΔE00 3.58
Marine
#042E60
ΔE00 4.10
Prussian Blue
#004577
ΔE00 4.61
Cobalt (survey)
#1E488F
ΔE00 5.89
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#163B6B #6B4616
analogous
#16656B #163B6B #1B166B
triadic
#163B6B #6B163B #3B6B16
tetradic
#163B6B #6B1665 #6B4616 #166B1B
square
#163B6B #6B1665 #6B4616 #166B1B
split-complementary
#163B6B #6B1B16 #656B16
monochromatic
#050E19 #0C1F38 #163B6B #20579E #2B73D1
Accessibility & contrast
On white
11.22
#163B6B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.87
#163B6B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #163B6B
11.22:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##163B6B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##163B6B | 1.00 | 11.22 | 1.87 | 11.22 |
| #FFFFFF | 11.22 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.87 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.22 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#233F6D
Deuteranopia (green-blind)
#14376A
Tritanopia (blue-blind)
#00464D
Achromatopsia (no color)
#3B3B3B
Design tokens & code
CSS
--color: #163b6b; /* rgb */ color: rgb(22, 59, 107); /* oklch */ color: oklch(35.3% 0.094 256.3);
Tailwind
colors: {
custom: {
50: '#617096',
500: '#163b6b',
950: '#000000',
},
}SCSS
$custom: #163b6b; $custom-light: #617096; $custom-dark: #000000;
JSON
{
"hex": "#163b6b",
"rgb": {
"r": 22,
"g": 59,
"b": 107
},
"hsl": {
"h": 213.882,
"s": 65.891,
"l": 25.294
},
"oklch": {
"l": 0.3534,
"c": 0.09354,
"h": 256.3
},
"luminance": 0.0436
}Semantic roles & 50–950 ramp
primary
#163B6B
secondary
#A1753B
accent
#9F3FE9
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#05070D
muted
#7A7A7E