#173177#173177
#173177 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.0% C 0.124 H 264.9°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).
Color values
| HEX | #173177 |
|---|---|
| RGB | rgb(23, 49, 119) |
| HSL | hsl(224, 68%, 28%) |
| HSV | hsv(224, 81%, 47%) |
| CMYK | cmyk(80.7%, 58.8%, 0%, 53.3%) |
| CIE-LAB | lab(22.69, 17.80, -42.88) |
| CIE-LCH | lch(22.69, 46.43, 292.54°) |
| OKLab | oklab(34% -0.0109 -0.1238) |
| OKLCH | oklch(34% 0.124 264.9) |
| XYZ | xyz(4.7803, 3.7101, 17.9134) |
| Luminance | 0.0371 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine
#042E60
ΔE00 4.40
Marine Blue
#01386A
ΔE00 5.43
Darkish Blue
#014182
ΔE00 6.50
Twilight Blue
#0A437A
ΔE00 7.35
Cobalt (survey)
#1E488F
ΔE00 7.76
Midnight Blue
#191970
ΔE00 7.79
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#173177 #775D17
analogous
#176177 #173177 #2D1777
triadic
#173177 #771731 #317717
tetradic
#173177 #771761 #775D17 #17772D
square
#173177 #771761 #775D17 #17772D
split-complementary
#173177 #772D17 #617717
monochromatic
#050B1A #0D1C44 #173177 #2146AA #315ED7
Accessibility & contrast
On white
12.05
#173177 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.74
#173177 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #173177
12.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##173177 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##173177 | 1.00 | 12.05 | 1.74 | 12.05 |
| #FFFFFF | 12.05 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.74 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.05 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003B79
Deuteranopia (green-blind)
#003276
Tritanopia (blue-blind)
#00424F
Achromatopsia (no color)
#363636
Design tokens & code
CSS
--color: #173177; /* rgb */ color: rgb(23, 49, 119); /* oklch */ color: oklch(34.0% 0.124 264.9);
Tailwind
colors: {
custom: {
50: '#65689f',
500: '#173177',
950: '#000000',
},
}SCSS
$custom: #173177; $custom-light: #65689f; $custom-dark: #000000;
JSON
{
"hex": "#173177",
"rgb": {
"r": 23,
"g": 49,
"b": 119
},
"hsl": {
"h": 223.75,
"s": 67.606,
"l": 27.843
},
"oklch": {
"l": 0.34001,
"c": 0.12424,
"h": 264.9
},
"luminance": 0.03711
}Semantic roles & 50–950 ramp
primary
#173177
secondary
#AC8E3E
accent
#BC3DEA
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060E
muted
#7A7A7E