#040B11
Closest named color: Almost Black (#070D0D). oklch(14.4% 0.019 240.2), rgb(4, 11, 17).
Aa
White text reads best on this color (19.79:1).
About this color
#040B11 is a very dark close to neutral grey. In OKLCH its lightness is 14%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.016 away. White text reads best on it, at 19.79:1.
| Hue family | Neutrals |
| Lightness | very dark (14%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.06:1 |
| White text | 19.79:1 |
Values
| HEX | #040B11 |
| RGB | rgb(4, 11, 17) |
| HSL | hsl(208, 62%, 4%) |
| OKLCH | oklch(14.4% 0.019 240.2) |
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 #040B11 | 19.79:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #040B11 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #040B11 text on white | 19.79:1 | AAA | Lc 105.8 | Preferred for body text |
| #040B11 text on black | 1.06:1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B4C3CE
oklch(80.9% 0.023 239.5)
-
Step 400
400
#8DA4B5
oklch(70.7% 0.036 240.1)
-
Step 500
500
#718EA2
oklch(63.2% 0.045 238.5)
-
Step 600
600
#59788E
oklch(55.7% 0.049 239.7)
-
Step 700
700
#496478
oklch(49% 0.045 240.9)
-
Step 800
800
#3C5262
oklch(42.7% 0.038 240.3)
-
Step 900
900
#334450
oklch(37.7% 0.03 239.3)
-
Step 950
950 (this color)
#040B11
oklch(14.4% 0.019 240.2)
#040B11 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) | #080B11 | 0.009 |
| Deuteranopia (no green cones) | #070911 | 0.010 |
| Tritanopia (no blue cones) | #010C0D | 0.014 |
| Achromatopsia (no color) | #0A0A0A | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040B11
#040B11
oklch(14.4% 0.019 240.2)
- #100804
#100804
oklch(14.4% 0.018 54.8)
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 #040B11, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.016
- Rich Navy #001219 ΔE 0.029
- Very Dark Brown #1D0200 ΔE 0.071
- Midnight #03012D ΔE 0.073
- Dark Navy Blue #00022E ΔE 0.073
- Rich Black #0D1B2A ΔE 0.075
- Dark Navy #000435 ΔE 0.080
- Very Dark Blue #000133 ΔE 0.082
Use #040B11 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.