#000B15
Closest named color: Almost Black (#070D0D). oklch(14.2% 0.032 238.2), rgb(0, 11, 21).
Aa
White text reads best on this color (19.83:1).
About this color
#000B15 is a very dark, muted blue. In OKLCH its lightness is 14%, its chroma 0.032 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.027 away. White text reads best on it, at 19.83:1.
| Hue family | Blues |
| Lightness | very dark (14%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.05:1 |
| White text | 19.83:1 |
Values
| HEX | #000B15 |
| RGB | rgb(0, 11, 21) |
| HSL | hsl(209, 100%, 4%) |
| OKLCH | oklch(14.2% 0.032 238.2) |
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 #000B15 | 19.83:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #000B15 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #000B15 text on white | 19.83:1 | AAA | Lc 105.8 | Preferred for body text |
| #000B15 text on black | 1.05:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ABC5D6
oklch(80.9% 0.037 236.6)
-
Step 400
400
#7EA7C2
oklch(70.8% 0.06 237.6)
-
Step 500
500
#5C90B3
oklch(63.1% 0.077 239.1)
-
Step 600
600
#407A9E
oklch(55.6% 0.083 238)
-
Step 700
700
#316788
oklch(49.2% 0.078 238)
-
Step 800
800
#2A546E
oklch(42.7% 0.064 237.9)
-
Step 900
900
#274559
oklch(37.6% 0.05 239.2)
-
Step 950
950 (this color)
#000B15
oklch(14.2% 0.032 238.2)
#000B15 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) | #070B15 | 0.018 |
| Deuteranopia (no green cones) | #040915 | 0.013 |
| Tritanopia (no blue cones) | #000E0F | 0.021 |
| Achromatopsia (no color) | #0A0A0A | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #000B15
#000B15
oklch(14.2% 0.032 238.2)
- #130600
#130600
oklch(14.1% 0.033 60.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #000B15
These curated palettes and gradients contain exactly #000B15. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.027
- Rich Navy #001219 ΔE 0.028
- Dark Navy Blue #00022E ΔE 0.063
- Midnight #03012D ΔE 0.064
- Dark Navy #000435 ΔE 0.071
- Very Dark Blue #000133 ΔE 0.072
- Rich Black #0D1B2A ΔE 0.076
- Very Dark Brown #1D0200 ΔE 0.084
Use #000B15 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.