#04030B
Closest named color: Almost Black (#070D0D). oklch(10.7% 0.024 289.8), rgb(4, 3, 11).
Aa
White text reads best on this color (20.52:1).
About this color
#04030B is a very dark close to neutral grey. In OKLCH its lightness is 11%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.053 away. White text reads best on it, at 20.52:1.
| Hue family | Neutrals |
| Lightness | very dark (11%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.02:1 |
| White text | 20.52:1 |
Values
| HEX | #04030B |
| RGB | rgb(4, 3, 11) |
| HSL | hsl(248, 57%, 3%) |
| OKLCH | oklch(10.7% 0.024 289.8) |
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 #04030B | 20.52:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #04030B | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #04030B text on white | 20.52:1 | AAA | Lc 106.0 | Preferred for body text |
| #04030B 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D8D8E3
oklch(88.5% 0.015 286.1)
-
Step 300
300
#C0BED2
oklch(80.9% 0.028 290.4)
-
Step 400
400
#9F9CBC
oklch(70.6% 0.046 289.5)
-
Step 500
500
#8884AB
oklch(63.1% 0.058 289.3)
-
Step 600
600
#726D96
oklch(55.5% 0.063 289.8)
-
Step 700
700
#605B80
oklch(49.1% 0.059 290.2)
-
Step 800
800
#4E4B68
oklch(42.8% 0.048 289)
-
Step 900
900
#413E55
oklch(37.6% 0.039 290.4)
-
Step 950
950 (this color)
#04030B
oklch(10.7% 0.024 289.8)
#04030B 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) | #02040B | 0.011 |
| Deuteranopia (no green cones) | #02040B | 0.011 |
| Tritanopia (no blue cones) | #030405 | 0.021 |
| Achromatopsia (no color) | #040404 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04030B
#04030B
oklch(10.7% 0.024 289.8)
- #040400
#040400
oklch(10.3% 0.023 109.8)
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 #04030B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.053
- Rich Navy #001219 ΔE 0.070
- Midnight #03012D ΔE 0.075
- Dark Navy Blue #00022E ΔE 0.078
- Very Dark Brown #1D0200 ΔE 0.078
- Very Dark Blue #000133 ΔE 0.088
- Dark Navy #000435 ΔE 0.092
- Black #000000 ΔE 0.109
Use #04030B 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.