#172109
Closest named color: Dark Forest Green (#002D04). oklch(23.1% 0.044 128.2), rgb(23, 33, 9).
Aa
White text reads best on this color (16.69:1).
About this color
#172109 is a very dark, muted green. In OKLCH its lightness is 23%, its chroma 0.044 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.050 away. White text reads best on it, at 16.69:1.
| Hue family | Greens |
| Lightness | very dark (23%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.25:1 |
| White text | 16.69:1 |
Values
| HEX | #172109 |
| RGB | rgb(23, 33, 9) |
| HSL | hsl(85, 57%, 8%) |
| OKLCH | oklch(23.1% 0.044 128.2) |
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 #172109 | 16.69:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #172109 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #172109 text on white | 16.69:1 | AAA | Lc 103.6 | Preferred for body text |
| #172109 text on black | 1.25:1 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE1
oklch(93.6% 0.016 126.8)
-
Step 200
200
#D3DDC9
oklch(88.4% 0.029 128.8)
-
Step 300
300
#B7C8A4
oklch(81% 0.053 128.1)
-
Step 400
400
#91AB73
oklch(70.7% 0.083 128.6)
-
Step 500
500
#76964D
oklch(63.2% 0.107 128.6)
-
Step 600
600
#5F802F
oklch(55.7% 0.116 128.4)
-
Step 700
700
#4E6C21
oklch(49.1% 0.108 128.5)
-
Step 800
800
#40581D
oklch(42.7% 0.09 128.5)
-
Step 900
900
#37481E
oklch(37.6% 0.068 127.6)
-
Step 950
950 (this color)
#172109
oklch(23.1% 0.044 128.2)
#172109 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) | #231E07 | 0.023 |
| Deuteranopia (no green cones) | #221E0B | 0.023 |
| Tritanopia (no blue cones) | #181F1C | 0.036 |
| Achromatopsia (no color) | #1E1E1E | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172109
#172109
oklch(23.1% 0.044 128.2)
- #23172D
#23172D
oklch(23.1% 0.044 308.4)
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 #172109, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.050
- Very Dark Green #062E03 ΔE 0.052
- Dark Brown #341C02 ΔE 0.057
- Jet #212529 ΔE 0.058
- Dark #1B2431 ΔE 0.070
- Rich Black #0D1B2A ΔE 0.071
- Pakistan Green #283618 ΔE 0.081
- Rich Navy #001219 ΔE 0.084
Use #172109 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.