#040D03
Closest named color: Almost Black (#070D0D). oklch(14.4% 0.03 140.8), rgb(4, 13, 3).
Aa
White text reads best on this color (19.73:1).
About this color
#040D03 is a very dark, muted green. In OKLCH its lightness is 14%, its chroma 0.030 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.027 away. White text reads best on it, at 19.73:1.
| Hue family | Greens |
| Lightness | very dark (14%) |
| Chroma | muted (0.030) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.06:1 |
| White text | 19.73:1 |
Values
| HEX | #040D03 |
| RGB | rgb(4, 13, 3) |
| HSL | hsl(114, 63%, 3%) |
| OKLCH | oklch(14.4% 0.03 140.8) |
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 #040D03 | 19.73:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #040D03 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #040D03 text on white | 19.73:1 | AAA | Lc 105.8 | Preferred for body text |
| #040D03 text on black | 1.06:1 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6ECE5
oklch(93.7% 0.011 141.3)
-
Step 200
200
#D2DDD0
oklch(88.6% 0.021 140.9)
-
Step 300
300
#B5C7B1
oklch(81% 0.036 140)
-
Step 400
400
#8EAA89
oklch(70.8% 0.056 140.9)
-
Step 500
500
#71956B
oklch(63.1% 0.073 141)
-
Step 600
600
#597F53
oklch(55.6% 0.079 141.1)
-
Step 700
700
#496B43
oklch(49.1% 0.073 140.8)
-
Step 800
800
#3C5737
oklch(42.6% 0.061 140.6)
-
Step 900
900
#344830
oklch(37.7% 0.047 140.4)
-
Step 950
950 (this color)
#040D03
oklch(14.4% 0.03 140.8)
#040D03 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) | #0E0B03 | 0.023 |
| Deuteranopia (no green cones) | #0C0A03 | 0.021 |
| Tritanopia (no blue cones) | #030C0A | 0.020 |
| Achromatopsia (no color) | #0B0B0B | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040D03
#040D03
oklch(14.4% 0.03 140.8)
- #100612
#100612
oklch(14.5% 0.031 321.1)
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 #040D03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.027
- Rich Navy #001219 ΔE 0.047
- Very Dark Brown #1D0200 ΔE 0.069
- Rich Black #0D1B2A ΔE 0.091
- Dark Navy Blue #00022E ΔE 0.109
- Midnight #03012D ΔE 0.110
- Dark Navy #000435 ΔE 0.116
- Very Dark Blue #000133 ΔE 0.118
Use #040D03 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.