#040E09
Closest named color: Almost Black (#070D0D). oklch(15.1% 0.02 164.1), rgb(4, 14, 9).
Aa
White text reads best on this color (19.59:1).
About this color
#040E09 is a very dark close to neutral grey. In OKLCH its lightness is 15%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.013 away. White text reads best on it, at 19.59:1.
| Hue family | Neutrals |
| Lightness | very dark (15%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.59:1 |
Values
| HEX | #040E09 |
| RGB | rgb(4, 14, 9) |
| HSL | hsl(150, 56%, 4%) |
| OKLCH | oklch(15.1% 0.02 164.1) |
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 #040E09 | 19.59:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #040E09 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #040E09 text on white | 19.59:1 | AAA | Lc 105.7 | Preferred for body text |
| #040E09 text on black | 1.07:1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD7
oklch(88.5% 0.013 164.8)
-
Step 300
300
#B3C6BC
oklch(80.9% 0.025 163)
-
Step 400
400
#8BA99A
oklch(70.8% 0.04 163.6)
-
Step 500
500
#6E9382
oklch(63.1% 0.048 165)
-
Step 600
600
#567D6B
oklch(55.5% 0.052 164.3)
-
Step 700
700
#466A59
oklch(49.2% 0.05 163.5)
-
Step 800
800
#395649
oklch(42.6% 0.041 164.9)
-
Step 900
900
#32473D
oklch(37.7% 0.031 163.9)
-
Step 950
950 (this color)
#040E09
oklch(15.1% 0.02 164.1)
#040E09 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) | #0E0D09 | 0.021 |
| Deuteranopia (no green cones) | #0C0B09 | 0.020 |
| Tritanopia (no blue cones) | #020E0D | 0.009 |
| Achromatopsia (no color) | #0C0C0C | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040E09
#040E09
oklch(15.1% 0.02 164.1)
- #11080D
#11080D
oklch(15% 0.019 344.9)
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 #040E09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.013
- Rich Navy #001219 ΔE 0.033
- Very Dark Brown #1D0200 ΔE 0.069
- Rich Black #0D1B2A ΔE 0.078
- Dark Navy Blue #00022E ΔE 0.096
- Midnight #03012D ΔE 0.096
- Dark Navy #000435 ΔE 0.101
- Very Dark Blue #000133 ΔE 0.104
Use #040E09 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.