#0B174A#0B174A
#0B174A is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.4% C 0.096 H 267.8°. Best body text is #FFFFFF at 17.00:1 contrast (WCAG AA passes).
Color values
| HEX | #0B174A |
|---|---|
| RGB | rgb(11, 23, 74) |
| HSL | hsl(229, 74%, 17%) |
| HSV | hsv(229, 85%, 29%) |
| CMYK | cmyk(85.1%, 68.9%, 0%, 71%) |
| CIE-LAB | lab(10.40, 16.47, -33.12) |
| CIE-LCH | lch(10.40, 36.99, 296.44°) |
| OKLab | oklab(23.39% -0.0037 -0.0958) |
| OKLCH | oklch(23.39% 0.096 267.8) |
| XYZ | xyz(1.6800, 1.1782, 6.6161) |
| Luminance | 0.0118 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 1.88
Navy (survey)
#01153E
ΔE00 2.92
Dark Navy
#000435
ΔE00 4.62
Midnight Blue (survey)
#020035
ΔE00 5.02
Very Dark Blue
#000133
ΔE00 5.08
Night Blue
#040348
ΔE00 5.79
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0B174A #4A3E0B
analogous
#0B374A #0B174A #1F0B4A
triadic
#0B174A #4A0B17 #174A0B
tetradic
#0B174A #4A0B37 #4A3E0B #0B4A1F
square
#0B174A #4A0B37 #4A3E0B #0B4A1F
split-complementary
#0B174A #4A1F0B #374A0B
monochromatic
#04081B #04081B #0B174A #13287F #1B38B5
Accessibility & contrast
On white
17.00
#0B174A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.24
#0B174A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0B174A
17.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0B174A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0B174A | 1.00 | 17.00 | 1.24 | 17.00 |
| #FFFFFF | 17.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001F4C
Deuteranopia (green-blind)
#001949
Tritanopia (blue-blind)
#00242D
Achromatopsia (no color)
#1C1C1C
Design tokens & code
CSS
--color: #0b174a; /* rgb */ color: rgb(11, 23, 74); /* oklch */ color: oklch(23.4% 0.096 267.8);
Tailwind
colors: {
custom: {
50: '#56537d',
500: '#0b174a',
950: '#000000',
},
}SCSS
$custom: #0b174a; $custom-light: #56537d; $custom-dark: #000000;
JSON
{
"hex": "#0b174a",
"rgb": {
"r": 11,
"g": 23,
"b": 74
},
"hsl": {
"h": 228.571,
"s": 74.118,
"l": 16.667
},
"oklch": {
"l": 0.23391,
"c": 0.09583,
"h": 267.8
},
"luminance": 0.01178
}Semantic roles & 50–950 ramp
primary
#0B174A
secondary
#86752B
accent
#CD37F1
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#03020A
muted
#78787C