#0B174D#0B174D
#0B174D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.100 H 267.8°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).
Color values
| HEX | #0B174D |
|---|---|
| RGB | rgb(11, 23, 77) |
| HSL | hsl(229, 75%, 17%) |
| HSV | hsv(229, 86%, 30%) |
| CMYK | cmyk(85.7%, 70.1%, 0%, 69.8%) |
| CIE-LAB | lab(10.70, 17.77, -34.69) |
| CIE-LCH | lch(10.70, 38.98, 297.13°) |
| OKLab | oklab(23.71% -0.0038 -0.1004) |
| OKLCH | oklch(23.71% 0.1 267.8) |
| XYZ | xyz(1.7835, 1.2196, 7.1611) |
| Luminance | 0.0122 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 1.92
Navy (survey)
#01153E
ΔE00 3.52
Dark Navy
#000435
ΔE00 5.01
Midnight Blue (survey)
#020035
ΔE00 5.31
Very Dark Blue
#000133
ΔE00 5.47
Night Blue
#040348
ΔE00 5.47
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0B174D #4D410B
analogous
#0B384D #0B174D #200B4D
triadic
#0B174D #4D0B17 #174D0B
tetradic
#0B174D #4D0B38 #4D410B #0B4D20
square
#0B174D #4D0B38 #4D410B #0B4D20
split-complementary
#0B174D #4D200B #384D0B
monochromatic
#04081B #04081B #0B174D #132783 #1A37B8
Accessibility & contrast
On white
16.88
#0B174D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.24
#0B174D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0B174D
16.88:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0B174D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0B174D | 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)
#00204F
Deuteranopia (green-blind)
#001A4C
Tritanopia (blue-blind)
#00252F
Achromatopsia (no color)
#1D1D1D
Design tokens & code
CSS
--color: #0b174d; /* rgb */ color: rgb(11, 23, 77); /* oklch */ color: oklch(23.7% 0.100 267.8);
Tailwind
colors: {
custom: {
50: '#57537f',
500: '#0b174d',
950: '#000000',
},
}SCSS
$custom: #0b174d; $custom-light: #57537f; $custom-dark: #000000;
JSON
{
"hex": "#0b174d",
"rgb": {
"r": 11,
"g": 23,
"b": 77
},
"hsl": {
"h": 229.091,
"s": 75,
"l": 17.255
},
"oklch": {
"l": 0.23711,
"c": 0.10044,
"h": 267.8
},
"luminance": 0.0122
}Semantic roles & 50–950 ramp
primary
#0B174D
secondary
#89782B
accent
#D036F2
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#04020A
muted
#79787C