#040C13
Closest named color: Almost Black (#070D0D). oklch(14.9% 0.021 241.6), rgb(4, 12, 19).
Aa
White text reads best on this color (19.67:1).
About this color
#040C13 is a very dark close to neutral grey. In OKLCH its lightness is 15%, its chroma 0.021. 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 19.67:1.
| Hue family | Neutrals |
| Lightness | very dark (15%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.06:1 |
| White text | 19.67:1 |
Values
| HEX | #040C13 |
| RGB | rgb(4, 12, 19) |
| HSL | hsl(208, 65%, 5%) |
| OKLCH | oklch(14.9% 0.021 241.6) |
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 #040C13 | 19.67:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #040C13 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #040C13 text on white | 19.67:1 | AAA | Lc 105.8 | Preferred for body text |
| #040C13 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D1DAE2
oklch(88.4% 0.015 244.7)
-
Step 300
300
#B3C3D0
oklch(80.9% 0.025 242.4)
-
Step 400
400
#8BA4B8
oklch(70.6% 0.041 242.4)
-
Step 500
500
#6E8EA6
oklch(63.1% 0.051 241)
-
Step 600
600
#567891
oklch(55.7% 0.055 240.8)
-
Step 700
700
#46657C
oklch(49.2% 0.052 241.2)
-
Step 800
800
#3A5264
oklch(42.7% 0.042 241.3)
-
Step 900
900
#324452
oklch(37.7% 0.033 242.1)
-
Step 950
950 (this color)
#040C13
oklch(14.9% 0.021 241.6)
#040C13 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) | #090C13 | 0.011 |
| Deuteranopia (no green cones) | #070A13 | 0.010 |
| Tritanopia (no blue cones) | #000E0E | 0.019 |
| Achromatopsia (no color) | #0B0B0B | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040C13
#040C13
oklch(14.9% 0.021 241.6)
- #110903
#110903
oklch(14.9% 0.021 66.3)
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 #040C13, 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 0.024
- Rich Black #0D1B2A ΔE 0.070
- Midnight #03012D ΔE 0.071
- Dark Navy Blue #00022E ΔE 0.071
- Very Dark Brown #1D0200 ΔE 0.073
- Dark Navy #000435 ΔE 0.077
- Very Dark Blue #000133 ΔE 0.080
Use #040C13 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.