#040F06
Closest named color: Almost Black (#070D0D). oklch(15.3% 0.027 149.9), rgb(4, 15, 6).
Aa
White text reads best on this color (19.51:1).
About this color
#040F06 is a very dark close to neutral grey. In OKLCH its lightness is 15%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.022 away. White text reads best on it, at 19.51:1.
| Hue family | Neutrals |
| Lightness | very dark (15%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.51:1 |
Values
| HEX | #040F06 |
| RGB | rgb(4, 15, 6) |
| HSL | hsl(131, 58%, 4%) |
| OKLCH | oklch(15.3% 0.027 149.9) |
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 #040F06 | 19.51:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #040F06 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #040F06 text on white | 19.51:1 | AAA | Lc 105.7 | Preferred for body text |
| #040F06 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE7
oklch(93.7% 0.009 150.7)
-
Step 200
200
#D1DDD3
oklch(88.6% 0.019 150.5)
-
Step 300
300
#B3C7B6
oklch(81% 0.032 149.7)
-
Step 400
400
#8AAA90
oklch(70.7% 0.051 150.4)
-
Step 500
500
#6D9574
oklch(63.1% 0.066 149.5)
-
Step 600
600
#547F5D
oklch(55.5% 0.071 150.2)
-
Step 700
700
#446C4C
oklch(49.2% 0.068 149.7)
-
Step 800
800
#38583F
oklch(42.8% 0.056 150.4)
-
Step 900
900
#314835
oklch(37.6% 0.043 149.3)
-
Step 950
950 (this color)
#040F06
oklch(15.3% 0.027 149.9)
#040F06 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) | #0F0D06 | 0.023 |
| Deuteranopia (no green cones) | #0D0C06 | 0.021 |
| Tritanopia (no blue cones) | #030F0D | 0.015 |
| Achromatopsia (no color) | #0C0C0C | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040F06
#040F06
oklch(15.3% 0.027 149.9)
- #120811
#120811
oklch(15.4% 0.025 330.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #040F06, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.022
- Rich Navy #001219 ΔE 0.038
- Very Dark Brown #1D0200 ΔE 0.070
- Rich Black #0D1B2A ΔE 0.081
- Dark Navy Blue #00022E ΔE 0.105
- Midnight #03012D ΔE 0.105
- Dark Navy #000435 ΔE 0.110
- Very Dark Blue #000133 ΔE 0.113
Use #040F06 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.