#040009
Closest named color: Almost Black (#070D0D). oklch(8.3% 0.042 309.3), rgb(4, 0, 9).
Aa
White text reads best on this color (20.81:1).
About this color
#040009 is a very dark, muted purple. In OKLCH its lightness is 8%, its chroma 0.042 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.084 away. White text reads best on it, at 20.81:1.
| Hue family | Purples |
| Lightness | very dark (8%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.00:1 |
| White text | 20.81:1 |
Values
| HEX | #040009 |
| RGB | rgb(4, 0, 9) |
| HSL | hsl(267, 100%, 2%) |
| OKLCH | oklch(8.3% 0.042 309.3) |
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 #040009 | 20.81:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #040009 | 1.00:1 | Fails | Lc 0.0 | Not readable |
| #040009 text on white | 20.81:1 | AAA | Lc 106.0 | Preferred for body text |
| #040009 text on black | 1.00:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#DED4E7
oklch(88.4% 0.028 309.2)
-
Step 300
300
#CAB8D9
oklch(80.8% 0.05 309.7)
-
Step 400
400
#AF93C7
oklch(70.7% 0.08 308.9)
-
Step 500
500
#9C78B8
oklch(63.2% 0.101 309.5)
-
Step 600
600
#8660A4
oklch(55.6% 0.11 308.9)
-
Step 700
700
#724F8C
oklch(49.1% 0.102 309.5)
-
Step 800
800
#5D4172
oklch(42.7% 0.085 309.5)
-
Step 900
900
#4C375C
oklch(37.6% 0.067 309.5)
-
Step 950
950 (this color)
#040009
oklch(8.3% 0.042 309.3)
#040009 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) | #000109 | 0.032 |
| Deuteranopia (no green cones) | #000209 | 0.034 |
| Tritanopia (no blue cones) | #030103 | 0.027 |
| Achromatopsia (no color) | #020202 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040009
#040009
oklch(8.3% 0.042 309.3)
- #010200
#010200
oklch(7.8% 0.02 126.6)
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 #040009, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.084
- Midnight #03012D ΔE 0.085
- Dark Navy Blue #00022E ΔE 0.090
- Black #000000 ΔE 0.093
- Very Dark Brown #1D0200 ΔE 0.095
- Very Dark Blue #000133 ΔE 0.100
- Rich Navy #001219 ΔE 0.100
- Dark Navy #000435 ΔE 0.106
Use #040009 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.