#0A174A#0A174A
#0A174A is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.3% C 0.096 H 267.2°. Best body text is #FFFFFF at 17.01:1 contrast (WCAG AA passes).
Color values
| HEX | #0A174A |
|---|---|
| RGB | rgb(10, 23, 74) |
| HSL | hsl(228, 76%, 16%) |
| HSV | hsv(228, 86%, 29%) |
| CMYK | cmyk(86.5%, 68.9%, 0%, 71%) |
| CIE-LAB | lab(10.35, 16.36, -33.20) |
| CIE-LCH | lch(10.35, 37.01, 296.22°) |
| OKLab | oklab(23.34% -0.0047 -0.096) |
| OKLCH | oklch(23.34% 0.096 267.2) |
| XYZ | xyz(1.6672, 1.1715, 6.6155) |
| Luminance | 0.0117 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 1.86
Navy (survey)
#01153E
ΔE00 2.86
Dark Navy
#000435
ΔE00 4.60
Midnight Blue (survey)
#020035
ΔE00 5.03
Very Dark Blue
#000133
ΔE00 5.07
Dark Navy Blue
#00022E
ΔE00 5.78
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0A174A #4A3D0A
analogous
#0A374A #0A174A #1D0A4A
triadic
#0A174A #4A0A17 #174A0A
tetradic
#0A174A #4A0A37 #4A3D0A #0A4A1D
square
#0A174A #4A0A37 #4A3D0A #0A4A1D
split-complementary
#0A174A #4A1D0A #374A0A
monochromatic
#04081B #04081B #0A174A #112880 #1939B6
Accessibility & contrast
On white
17.01
#0A174A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.23
#0A174A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0A174A
17.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0A174A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0A174A | 1.00 | 17.01 | 1.23 | 17.01 |
| #FFFFFF | 17.01 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.23 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.01 | 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: #0a174a; /* rgb */ color: rgb(10, 23, 74); /* oklch */ color: oklch(23.3% 0.096 267.2);
Tailwind
colors: {
custom: {
50: '#56537d',
500: '#0a174a',
950: '#000000',
},
}SCSS
$custom: #0a174a; $custom-light: #56537d; $custom-dark: #000000;
JSON
{
"hex": "#0a174a",
"rgb": {
"r": 10,
"g": 23,
"b": 74
},
"hsl": {
"h": 227.813,
"s": 76.19,
"l": 16.471
},
"oklch": {
"l": 0.23341,
"c": 0.09614,
"h": 267.2
},
"luminance": 0.01172
}Semantic roles & 50–950 ramp
primary
#0A174A
secondary
#877429
accent
#CC35F3
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#03020A
muted
#78787C