#0A0511
Closest named color: Almost Black (#070D0D). oklch(13.2% 0.029 304), rgb(10, 5, 17).
Aa
White text reads best on this color (20.13:1).
About this color
#0A0511 is a very dark close to neutral grey. In OKLCH its lightness is 13%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.040 away. White text reads best on it, at 20.13:1.
| Hue family | Neutrals |
| Lightness | very dark (13%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.04:1 |
| White text | 20.13:1 |
Values
| HEX | #0A0511 |
| RGB | rgb(10, 5, 17) |
| HSL | hsl(265, 55%, 4%) |
| OKLCH | oklch(13.2% 0.029 304) |
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 #0A0511 | 20.13:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #0A0511 | 1.04:1 | Fails | Lc 0.0 | Not readable |
| #0A0511 text on white | 20.13:1 | AAA | Lc 105.9 | Preferred for body text |
| #0A0511 text on black | 1.04:1 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EBE8EF
oklch(93.5% 0.01 305.4)
-
Step 200
200
#DCD6E4
oklch(88.5% 0.02 305.2)
-
Step 300
300
#C5BBD3
oklch(80.8% 0.035 304.4)
-
Step 400
400
#A898BD
oklch(70.6% 0.056 304.6)
-
Step 500
500
#937FAD
oklch(63.1% 0.071 304.3)
-
Step 600
600
#7D6898
oklch(55.6% 0.077 304.1)
-
Step 700
700
#695682
oklch(49% 0.072 303.7)
-
Step 800
800
#56476A
oklch(42.8% 0.059 303.6)
-
Step 900
900
#473B56
oklch(37.6% 0.048 304.5)
-
Step 950
950 (this color)
#0A0511
oklch(13.2% 0.029 304)
#0A0511 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) | #030711 | 0.021 |
| Deuteranopia (no green cones) | #040711 | 0.018 |
| Tritanopia (no blue cones) | #090709 | 0.024 |
| Achromatopsia (no color) | #070707 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A0511
#0A0511
oklch(13.2% 0.029 304)
- #060901
#060901
oklch(13.2% 0.027 122.5)
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 #0A0511, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.040
- Rich Navy #001219 ΔE 0.054
- Very Dark Brown #1D0200 ΔE 0.064
- Midnight #03012D ΔE 0.066
- Dark Navy Blue #00022E ΔE 0.071
- Very Dark Blue #000133 ΔE 0.080
- Dark Navy #000435 ΔE 0.080
- Rich Black #0D1B2A ΔE 0.091
Use #0A0511 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.