#001B00
Closest named color: Dark Forest Green (#002D04). oklch(19.2% 0.065 142.5), rgb(0, 27, 0).
Aa
White text reads best on this color (18.15:1).
About this color
#001B00 is a very dark, muted green. In OKLCH its lightness is 19%, its chroma 0.065 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.068 away. White text reads best on it, at 18.15:1.
| Hue family | Greens |
| Lightness | very dark (19%) |
| Chroma | muted (0.065) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.15:1 |
| White text | 18.15:1 |
Values
| HEX | #001B00 |
| RGB | rgb(0, 27, 0) |
| HSL | hsl(120, 100%, 5%) |
| OKLCH | oklch(19.2% 0.065 142.5) |
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 #001B00 | 18.15:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #001B00 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #001B00 text on white | 18.15:1 | AAA | Lc 104.6 | Preferred for body text |
| #001B00 text on black | 1.15:1 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#C9E1C7
oklch(88.5% 0.043 143.1)
-
Step 300
300
#A4CEA0
oklch(80.9% 0.078 142.6)
-
Step 400
400
#71B46B
oklch(70.7% 0.124 142.3)
-
Step 500
500
#46A141
oklch(63.2% 0.159 142.5)
-
Step 600
600
#208B1C
oklch(55.7% 0.173 142.5)
-
Step 700
700
#0E760C
oklch(49.2% 0.161 142.5)
-
Step 800
800
#126010
oklch(42.8% 0.133 142.6)
-
Step 900
900
#194F16
oklch(37.8% 0.104 142.4)
-
Step 950
950 (this color)
#001B00
oklch(19.2% 0.065 142.5)
#001B00 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) | #1C1700 | 0.047 |
| Deuteranopia (no green cones) | #191502 | 0.047 |
| Tritanopia (no blue cones) | #001A15 | 0.042 |
| Achromatopsia (no color) | #161616 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #001B00
#001B00
oklch(19.2% 0.065 142.5)
- #210725
#210725
oklch(19.1% 0.066 322.2)
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 #001B00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.068
- Rich Navy #001219 ΔE 0.072
- Almost Black #070D0D ΔE 0.072
- Very Dark Green #062E03 ΔE 0.073
- Rich Black #0D1B2A ΔE 0.088
- Dark Brown #341C02 ΔE 0.097
- Jet #212529 ΔE 0.098
- Dark #1B2431 ΔE 0.104
Use #001B00 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.