#0F174B#0F174B
#0F174B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.096 H 270.4°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).
Color values
| HEX | #0F174B |
|---|---|
| RGB | rgb(15, 23, 75) |
| HSL | hsl(232, 67%, 18%) |
| HSV | hsv(232, 80%, 29%) |
| CMYK | cmyk(80%, 69.3%, 0%, 70.6%) |
| CIE-LAB | lab(10.72, 17.43, -33.27) |
| CIE-LCH | lch(10.72, 37.56, 297.65°) |
| OKLab | oklab(23.72% 0.0007 -0.0961) |
| OKLCH | oklch(23.72% 0.096 270.4) |
| XYZ | xyz(1.7730, 1.2222, 6.7977) |
| Luminance | 0.0122 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 2.07
Navy (survey)
#01153E
ΔE00 3.44
Dark Navy
#000435
ΔE00 4.85
Midnight Blue (survey)
#020035
ΔE00 5.14
Very Dark Blue
#000133
ΔE00 5.30
Night Blue
#040348
ΔE00 5.54
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0F174B #4B430F
analogous
#0F354B #0F174B #250F4B
triadic
#0F174B #4B0F17 #174B0F
tetradic
#0F174B #4B0F35 #4B430F #0F4B25
square
#0F174B #4B0F35 #4B430F #0F4B25
split-complementary
#0F174B #4B250F #354B0F
monochromatic
#05081A #05081A #0F174B #19277E #2336B1
Accessibility & contrast
On white
16.88
#0F174B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.24
#0F174B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0F174B
16.88:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0F174B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0F174B | 1.00 | 16.88 | 1.24 | 16.88 |
| #FFFFFF | 16.88 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.88 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00204D
Deuteranopia (green-blind)
#001A4A
Tritanopia (blue-blind)
#00242E
Achromatopsia (no color)
#1D1D1D
Design tokens & code
CSS
--color: #0f174b; /* rgb */ color: rgb(15, 23, 75); /* oklch */ color: oklch(23.7% 0.096 270.4);
Tailwind
colors: {
custom: {
50: '#58537e',
500: '#0f174b',
950: '#000000',
},
}SCSS
$custom: #0f174b; $custom-light: #58537e; $custom-dark: #000000;
JSON
{
"hex": "#0f174b",
"rgb": {
"r": 15,
"g": 23,
"b": 75
},
"hsl": {
"h": 232,
"s": 66.667,
"l": 17.647
},
"oklch": {
"l": 0.23723,
"c": 0.09611,
"h": 270.4
},
"luminance": 0.01222
}Semantic roles & 50–950 ramp
primary
#0F174B
secondary
#857A30
accent
#D33EEA
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#04020A
muted
#79787C