#0D183D#0D183D
#0D183D is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.5% C 0.073 H 267.7°. Best body text is #FFFFFF at 17.28:1 contrast (WCAG AA passes).
Color values
| HEX | #0D183D |
|---|---|
| RGB | rgb(13, 24, 61) |
| HSL | hsl(226, 65%, 15%) |
| HSV | hsv(226, 79%, 24%) |
| CMYK | cmyk(78.7%, 60.7%, 0%, 76.1%) |
| CIE-LAB | lab(9.61, 10.26, -25.26) |
| CIE-LCH | lch(9.61, 27.26, 292.10°) |
| OKLab | oklab(22.45% -0.0029 -0.0726) |
| OKLCH | oklch(22.45% 0.073 267.7) |
| XYZ | xyz(1.3346, 1.0756, 4.5513) |
| Luminance | 0.0108 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy (survey)
#01153E
ΔE00 1.93
Navy Blue (survey)
#001146
ΔE00 4.42
Dark Navy Blue
#00022E
ΔE00 4.56
Dark Navy
#000435
ΔE00 4.63
Midnight
#03012D
ΔE00 4.78
Very Dark Blue
#000133
ΔE00 5.01
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0D183D #3D320D
analogous
#0D303D #0D183D #1A0D3D
triadic
#0D183D #3D0D18 #183D0D
tetradic
#0D183D #3D0D30 #3D320D #0D3D1A
square
#0D183D #3D0D30 #3D320D #0D3D1A
split-complementary
#0D183D #3D1A0D #303D0D
monochromatic
#050A19 #050A19 #0D183D #182C6F #2340A2
Accessibility & contrast
On white
17.28
#0D183D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.22
#0D183D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0D183D
17.28:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0D183D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0D183D | 1.00 | 17.28 | 1.22 | 17.28 |
| #FFFFFF | 17.28 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.22 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.28 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#021D3E
Deuteranopia (green-blind)
#00193C
Tritanopia (blue-blind)
#002127
Achromatopsia (no color)
#1B1B1B
Design tokens & code
CSS
--color: #0d183d; /* rgb */ color: rgb(13, 24, 61); /* oklch */ color: oklch(22.5% 0.073 267.7);
Tailwind
colors: {
custom: {
50: '#535473',
500: '#0d183d',
950: '#000000',
},
}SCSS
$custom: #0d183d; $custom-light: #535473; $custom-dark: #000000;
JSON
{
"hex": "#0d183d",
"rgb": {
"r": 13,
"g": 24,
"b": 61
},
"hsl": {
"h": 226.25,
"s": 64.865,
"l": 14.51
},
"oklch": {
"l": 0.22452,
"c": 0.07267,
"h": 267.7
},
"luminance": 0.01076
}Semantic roles & 50–950 ramp
primary
#0D183D
secondary
#79672D
accent
#C140E8
background
#F4F4F7
surface
#E8E7ED
border
#C4C3C8
text
#030208
muted
#78787B