#0A040F
Closest named color: Almost Black (#070D0D). oklch(12.6% 0.03 310.7), rgb(10, 4, 15).
Aa
White text reads best on this color (20.24:1).
About this color
#0A040F is a very dark close to neutral grey. In OKLCH its lightness is 13%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.044 away. White text reads best on it, at 20.24:1.
| Hue family | Neutrals |
| Lightness | very dark (13%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.03:1 |
| White text | 20.24:1 |
Values
| HEX | #0A040F |
| RGB | rgb(10, 4, 15) |
| HSL | hsl(273, 58%, 4%) |
| OKLCH | oklch(12.6% 0.03 310.7) |
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 #0A040F | 20.24:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #0A040F | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #0A040F text on white | 20.24:1 | AAA | Lc 105.9 | Preferred for body text |
| #0A040F text on black | 1.03:1 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#ECE8EF
oklch(93.6% 0.01 311.2)
-
Step 200
200
#DDD6E3
oklch(88.5% 0.019 309.8)
-
Step 300
300
#C8BBD2
oklch(81% 0.035 310.7)
-
Step 400
400
#AC97BB
oklch(70.7% 0.057 311.1)
-
Step 500
500
#977DAA
oklch(63% 0.072 310.6)
-
Step 600
600
#826695
oklch(55.6% 0.078 311.1)
-
Step 700
700
#6E557F
oklch(49.2% 0.072 311)
-
Step 800
800
#594667
oklch(42.7% 0.058 310.3)
-
Step 900
900
#493B54
oklch(37.7% 0.045 309.7)
-
Step 950
950 (this color)
#0A040F
oklch(12.6% 0.03 310.7)
#0A040F 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) | #03060F | 0.022 |
| Deuteranopia (no green cones) | #04060F | 0.019 |
| Tritanopia (no blue cones) | #090508 | 0.019 |
| Achromatopsia (no color) | #060606 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A040F
#0A040F
oklch(12.6% 0.03 310.7)
- #040901
#040901
oklch(12.8% 0.029 131.2)
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 #0A040F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.044
- Rich Navy #001219 ΔE 0.060
- Very Dark Brown #1D0200 ΔE 0.064
- Midnight #03012D ΔE 0.070
- Dark Navy Blue #00022E ΔE 0.074
- Very Dark Blue #000133 ΔE 0.084
- Dark Navy #000435 ΔE 0.085
- Rich Black #0D1B2A ΔE 0.097
Use #0A040F 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.