#000B1D
Closest named color: Rich Navy (#001219). oklch(14.9% 0.045 252.3), rgb(0, 11, 29).
Aa
White text reads best on this color (19.70:1).
About this color
#000B1D is a very dark, muted blue. In OKLCH its lightness is 15%, its chroma 0.045 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.031 away. White text reads best on it, at 19.70:1.
| Hue family | Blues |
| Lightness | very dark (15%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.06:1 |
| White text | 19.70:1 |
Values
| HEX | #000B1D |
| RGB | rgb(0, 11, 29) |
| HSL | hsl(217, 100%, 6%) |
| OKLCH | oklch(14.9% 0.045 252.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #000B1D | 19.70:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #000B1D | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #000B1D text on white | 19.70:1 | AAA | Lc 105.7 | Preferred for body text |
| #000B1D text on black | 1.06:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBED
oklch(88.6% 0.03 253)
-
Step 300
300
#A8C3E3
oklch(80.8% 0.054 252.8)
-
Step 400
400
#7AA4D5
oklch(70.7% 0.086 252.8)
-
Step 500
500
#568DC9
oklch(63.1% 0.108 251.8)
-
Step 600
600
#3A76B6
oklch(55.6% 0.118 252)
-
Step 700
700
#2C639D
oklch(49.2% 0.11 252)
-
Step 800
800
#26517F
oklch(42.8% 0.09 252.1)
-
Step 900
900
#244366
oklch(37.7% 0.071 252.7)
-
Step 950
950 (this color)
#000B1D
oklch(14.9% 0.045 252.3)
#000B1D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #030D1E | 0.012 |
| Deuteranopia (no green cones) | #00091D | 0.008 |
| Tritanopia (no blue cones) | #000F12 | 0.032 |
| Achromatopsia (no color) | #0B0B0B | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #000B1D
#000B1D
oklch(14.9% 0.045 252.3)
- #130800
#130800
oklch(14.8% 0.032 70.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #000B1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.031
- Almost Black #070D0D ΔE 0.040
- Dark Navy Blue #00022E ΔE 0.047
- Midnight #03012D ΔE 0.048
- Dark Navy #000435 ΔE 0.053
- Very Dark Blue #000133 ΔE 0.055
- Rich Black #0D1B2A ΔE 0.069
- Navy Blue #001146 ΔE 0.085
Use #000B1D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.