#040F11
Closest named color: Almost Black (#070D0D). oklch(15.8% 0.018 208.9), rgb(4, 15, 17).
Aa
White text reads best on this color (19.41:1).
About this color
#040F11 is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.011 away. White text reads best on it, at 19.41:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.08:1 |
| White text | 19.41:1 |
Values
| HEX | #040F11 |
| RGB | rgb(4, 15, 17) |
| HSL | hsl(189, 62%, 4%) |
| OKLCH | oklch(15.8% 0.018 208.9) |
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 #040F11 | 19.41:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #040F11 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #040F11 text on white | 19.41:1 | AAA | Lc 105.6 | Preferred for body text |
| #040F11 text on black | 1.08:1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D1DBDD
oklch(88.4% 0.011 211)
-
Step 300
300
#B1C5C8
oklch(80.9% 0.022 207.6)
-
Step 400
400
#88A7AC
oklch(70.7% 0.035 208.4)
-
Step 500
500
#6A9198
oklch(63% 0.044 209.8)
-
Step 600
600
#517B82
oklch(55.5% 0.048 209)
-
Step 700
700
#41686E
oklch(49.1% 0.045 208.1)
-
Step 800
800
#36555A
oklch(42.7% 0.037 208.6)
-
Step 900
900
#2F464A
oklch(37.7% 0.029 209.5)
-
Step 950
950 (this color)
#040F11
oklch(15.8% 0.018 208.9)
#040F11 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) | #0D0E11 | 0.017 |
| Deuteranopia (no green cones) | #0B0C11 | 0.017 |
| Tritanopia (no blue cones) | #011010 | 0.008 |
| Achromatopsia (no color) | #0D0D0D | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040F11
#040F11
oklch(15.8% 0.018 208.9)
- #140A08
#140A08
oklch(15.8% 0.018 32.5)
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 #040F11, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.011
- Rich Navy #001219 ΔE 0.018
- Rich Black #0D1B2A ΔE 0.065
- Very Dark Brown #1D0200 ΔE 0.073
- Dark Navy Blue #00022E ΔE 0.082
- Midnight #03012D ΔE 0.082
- Dark Navy #000435 ΔE 0.086
- Very Dark Blue #000133 ΔE 0.090
Use #040F11 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.