#04040B
Closest named color: Almost Black (#070D0D). oklch(11.2% 0.02 282.7), rgb(4, 4, 11).
Aa
White text reads best on this color (20.44:1).
About this color
#04040B is a very dark close to neutral grey. In OKLCH its lightness is 11%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.046 away. White text reads best on it, at 20.44:1.
| Hue family | Neutrals |
| Lightness | very dark (11%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.02:1 |
| White text | 20.44:1 |
Values
| HEX | #04040B |
| RGB | rgb(4, 4, 11) |
| HSL | hsl(240, 47%, 3%) |
| OKLCH | oklch(11.2% 0.02 282.7) |
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 #04040B | 20.44:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #04040B | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #04040B text on white | 20.44:1 | AAA | Lc 106.0 | Preferred for body text |
| #04040B text on black | 1.02:1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D7D8E2
oklch(88.4% 0.014 281.5)
-
Step 300
300
#BEBFD0
oklch(80.9% 0.024 283.2)
-
Step 400
400
#9D9EB8
oklch(70.7% 0.038 283.6)
-
Step 500
500
#8586A6
oklch(63.1% 0.048 283.5)
-
Step 600
600
#6E7091
oklch(55.6% 0.051 281.9)
-
Step 700
700
#5C5D7C
oklch(49% 0.049 283)
-
Step 800
800
#4B4C65
oklch(42.6% 0.041 282.7)
-
Step 900
900
#3F4052
oklch(37.8% 0.031 282.3)
-
Step 950
950 (this color)
#04040B
oklch(11.2% 0.02 282.7)
#04040B 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) | #03050B | 0.007 |
| Deuteranopia (no green cones) | #02040B | 0.008 |
| Tritanopia (no blue cones) | #030506 | 0.017 |
| Achromatopsia (no color) | #050505 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04040B
#04040B
oklch(11.2% 0.02 282.7)
- #060501
#060501
oklch(11.4% 0.018 100.3)
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 #04040B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.046
- Rich Navy #001219 ΔE 0.063
- Very Dark Brown #1D0200 ΔE 0.075
- Midnight #03012D ΔE 0.075
- Dark Navy Blue #00022E ΔE 0.078
- Very Dark Blue #000133 ΔE 0.088
- Dark Navy #000435 ΔE 0.091
- Rich Black #0D1B2A ΔE 0.108
Use #04040B 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.