#040001
Closest named color: Black (#000000). oklch(6.9% 0.028 359.7), rgb(4, 0, 1).
Aa
White text reads best on this color (20.88:1).
About this color
#040001 is a very dark close to neutral grey. In OKLCH its lightness is 7%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Black (#000000), ΔE 0.075 away. White text reads best on it, at 20.88:1.
| Hue family | Neutrals |
| Lightness | very dark (7%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Black (#000000) |
| Black text | 1.00:1 |
| White text | 20.88:1 |
Values
| HEX | #040001 |
| RGB | rgb(4, 0, 1) |
| HSL | hsl(345, 100%, 1%) |
| OKLCH | oklch(6.9% 0.028 359.7) |
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 #040001 | 20.88:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #040001 | 1.00:1 | Fails | Lc 0.0 | Not readable |
| #040001 text on white | 20.88:1 | AAA | Lc 106.0 | Preferred for body text |
| #040001 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7E9
oklch(93.6% 0.01 2)
-
Step 200
200
#E4D4D8
oklch(88.4% 0.018 0.4)
-
Step 300
300
#D4B8C0
oklch(80.9% 0.034 358.7)
-
Step 400
400
#BD939F
oklch(70.6% 0.053 359.6)
-
Step 500
500
#AC7888
oklch(63% 0.068 359.2)
-
Step 600
600
#976172
oklch(55.6% 0.073 359.4)
-
Step 700
700
#81505F
oklch(49.1% 0.069 0.1)
-
Step 800
800
#69424E
oklch(42.8% 0.057 359.8)
-
Step 900
900
#553841
oklch(37.7% 0.043 359.2)
-
Step 950
950 (this color)
#040001
oklch(6.9% 0.028 359.7)
#040001 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) | #000101 | 0.039 |
| Deuteranopia (no green cones) | #010101 | 0.028 |
| Tritanopia (no blue cones) | #050000 | 0.015 |
| Achromatopsia (no color) | #010101 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040001
#040001
oklch(6.9% 0.028 359.7)
- #000201
#000201
oklch(7.5% 0.016 165.4)
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 #040001, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Black #000000 ΔE 0.075
- Very Dark Brown #1D0200 ΔE 0.089
- Almost Black #070D0D ΔE 0.091
- Rich Navy #001219 ΔE 0.114
- Midnight #03012D ΔE 0.117
- Dark Navy Blue #00022E ΔE 0.122
- Very Dark Blue #000133 ΔE 0.131
- Dark Navy #000435 ΔE 0.137
Use #040001 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.