#173158#173158
#173158 is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.5% C 0.077 H 258.4°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).
Color values
| HEX | #173158 |
|---|---|
| RGB | rgb(23, 49, 88) |
| HSL | hsl(216, 59%, 22%) |
| HSV | hsv(216, 74%, 35%) |
| CMYK | cmyk(73.9%, 44.3%, 0%, 65.5%) |
| CIE-LAB | lab(20.37, 4.88, -26.48) |
| CIE-LCH | lch(20.37, 26.92, 280.44°) |
| OKLab | oklab(31.5% -0.0155 -0.0755) |
| OKLCH | oklch(31.5% 0.077 258.4) |
| XYZ | xyz(3.2125, 3.0830, 9.6564) |
| Luminance | 0.0308 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine
#042E60
ΔE00 2.43
Navy Blue
#1B2A4A
ΔE00 3.58
Marine Blue
#01386A
ΔE00 4.19
Twilight Blue
#0A437A
ΔE00 7.38
Darkish Blue
#014182
ΔE00 7.54
Prussian Blue
#004577
ΔE00 8.25
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#173158 #583E17
analogous
#175258 #173158 #1E1758
triadic
#173158 #581731 #315817
tetradic
#173158 #581752 #583E17 #17581E
square
#173158 #581752 #583E17 #17581E
split-complementary
#173158 #581E17 #525817
monochromatic
#060E18 #0A1627 #173158 #244C89 #3067B9
Accessibility & contrast
On white
12.99
#173158 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.62
#173158 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #173158
12.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##173158 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##173158 | 1.00 | 12.99 | 1.62 | 12.99 |
| #FFFFFF | 12.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1F345A
Deuteranopia (green-blind)
#152E57
Tritanopia (blue-blind)
#003A40
Achromatopsia (no color)
#313131
Design tokens & code
CSS
--color: #173158; /* rgb */ color: rgb(23, 49, 88); /* oklch */ color: oklch(31.5% 0.077 258.4);
Tailwind
colors: {
custom: {
50: '#5d6887',
500: '#173158',
950: '#000000',
},
}SCSS
$custom: #173158; $custom-light: #5d6887; $custom-dark: #000000;
JSON
{
"hex": "#173158",
"rgb": {
"r": 23,
"g": 49,
"b": 88
},
"hsl": {
"h": 216,
"s": 58.559,
"l": 21.765
},
"oklch": {
"l": 0.31495,
"c": 0.07709,
"h": 258.4
},
"luminance": 0.03083
}Semantic roles & 50–950 ramp
primary
#173158
secondary
#8F6E3C
accent
#A346E2
background
#F5F6F8
surface
#E9EBEF
border
#C5C6CA
text
#05060B
muted
#797A7C