#040A00
Closest named color: Almost Black (#070D0D). oklch(13.2% 0.035 129.9), rgb(4, 10, 0).
Aa
White text reads best on this color (20.02:1).
About this color
#040A00 is a very dark, muted green. In OKLCH its lightness is 13%, its chroma 0.035 and its hue 130°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.039 away. White text reads best on it, at 20.02:1.
| Hue family | Greens |
| Lightness | very dark (13%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.04:1 |
| White text | 20.02:1 |
Values
| HEX | #040A00 |
| RGB | rgb(4, 10, 0) |
| HSL | hsl(96, 100%, 2%) |
| OKLCH | oklch(13.2% 0.035 129.9) |
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 #040A00 | 20.02:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #040A00 | 1.04:1 | Fails | Lc 0.0 | Not readable |
| #040A00 text on white | 20.02:1 | AAA | Lc 105.9 | Preferred for body text |
| #040A00 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
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E7ECE3
oklch(93.7% 0.013 130.8)
-
Step 200
200
#D4DCCD
oklch(88.4% 0.022 130)
-
Step 300
300
#B8C6AA
oklch(80.8% 0.041 129)
-
Step 400
400
#93A97D
oklch(70.6% 0.067 129.6)
-
Step 500
500
#78945C
oklch(63.1% 0.086 130.2)
-
Step 600
600
#617E41
oklch(55.5% 0.093 129.8)
-
Step 700
700
#506A33
oklch(49% 0.086 129.9)
-
Step 800
800
#42572B
oklch(42.8% 0.072 129.9)
-
Step 900
900
#384827
oklch(37.8% 0.057 129.8)
-
Step 950
950 (this color)
#040A00
oklch(13.2% 0.035 129.9)
#040A00 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) | #0B0800 | 0.019 |
| Deuteranopia (no green cones) | #0A0800 | 0.017 |
| Tritanopia (no blue cones) | #040907 | 0.028 |
| Achromatopsia (no color) | #080808 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040A00
#040A00
oklch(13.2% 0.035 129.9)
- #0C0412
#0C0412
oklch(13.2% 0.036 310.8)
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 #040A00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.039
- Rich Navy #001219 ΔE 0.061
- Very Dark Brown #1D0200 ΔE 0.070
- Rich Black #0D1B2A ΔE 0.106
- Dark Navy Blue #00022E ΔE 0.118
- Midnight #03012D ΔE 0.118
- Dark Navy #000435 ΔE 0.126
- Very Dark Blue #000133 ΔE 0.127
Use #040A00 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.