#163B8F#163B8F
#163B8F is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.146 H 263.2°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).
Color values
| HEX | #163B8F |
|---|---|
| RGB | rgb(22, 59, 143) |
| HSL | hsl(222, 73%, 32%) |
| HSV | hsv(222, 85%, 56%) |
| CMYK | cmyk(84.6%, 58.7%, 0%, 43.9%) |
| CIE-LAB | lab(27.52, 20.50, -50.05) |
| CIE-LCH | lch(27.52, 54.09, 292.27°) |
| OKLab | oklab(38.25% -0.0171 -0.1447) |
| OKLCH | oklch(38.25% 0.146 263.2) |
| XYZ | xyz(6.8510, 5.2808, 26.6395) |
| Luminance | 0.0528 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 4.45
Darkish Blue
#014182
ΔE00 4.47
Sapphire (survey)
#2138AB
ΔE00 5.03
Cobalt
#0047AB
ΔE00 5.08
Twilight Blue
#0A437A
ΔE00 5.68
Marine Blue
#01386A
ΔE00 6.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#163B8F #8F6A16
analogous
#16778F #163B8F #2E168F
triadic
#163B8F #8F163B #3B8F16
tetradic
#163B8F #8F1677 #8F6A16 #168F2E
square
#163B8F #8F1677 #8F6A16 #168F2E
split-complementary
#163B8F #8F2E16 #778F16
monochromatic
#060F25 #0E255A #163B8F #1E51C4 #3E70E1
Accessibility & contrast
On white
10.21
#163B8F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.06
#163B8F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #163B8F
10.21:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##163B8F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##163B8F | 1.00 | 10.21 | 2.06 | 10.21 |
| #FFFFFF | 10.21 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.06 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.21 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004792
Deuteranopia (green-blind)
#003C8D
Tritanopia (blue-blind)
#00505F
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #163b8f; /* rgb */ color: rgb(22, 59, 143); /* oklch */ color: oklch(38.3% 0.146 263.2);
Tailwind
colors: {
custom: {
50: '#6a70b1',
500: '#163b8f',
950: '#000000',
},
}SCSS
$custom: #163b8f; $custom-light: #6a70b1; $custom-dark: #000000;
JSON
{
"hex": "#163b8f",
"rgb": {
"r": 22,
"g": 59,
"b": 143
},
"hsl": {
"h": 221.653,
"s": 73.333,
"l": 32.353
},
"oklch": {
"l": 0.38254,
"c": 0.14567,
"h": 263.2
},
"luminance": 0.05282
}Semantic roles & 50–950 ramp
primary
#163B8F
secondary
#C19A3F
accent
#B838F0
background
#F6F6FB
surface
#ECECF6
border
#C7C7D0
text
#080711
muted
#7A7A80