#171D00
Closest named color: Dark Forest Green (#002D04). oklch(21.7% 0.051 119.9), rgb(23, 29, 0).
Aa
White text reads best on this color (17.32:1).
About this color
#171D00 is a very dark, muted brown. In OKLCH its lightness is 22%, its chroma 0.051 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.059 away. White text reads best on it, at 17.32:1.
| Hue family | Browns |
| Lightness | very dark (22%) |
| Chroma | muted (0.051) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.21:1 |
| White text | 17.32:1 |
Values
| HEX | #171D00 |
| RGB | rgb(23, 29, 0) |
| HSL | hsl(72, 100%, 6%) |
| OKLCH | oklch(21.7% 0.051 119.9) |
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 #171D00 | 17.32:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #171D00 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #171D00 text on white | 17.32:1 | AAA | Lc 104.1 | Preferred for body text |
| #171D00 text on black | 1.21:1 | 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
#F5F6F0
oklch(97.1% 0.008 114.2)
-
Step 100
100
#E8ECDF
oklch(93.6% 0.018 120.7)
-
Step 200
200
#D6DDC4
oklch(88.5% 0.034 119.8)
-
Step 300
300
#BBC79B
oklch(80.9% 0.061 120.2)
-
Step 400
400
#99AA62
oklch(70.8% 0.098 119.8)
-
Step 500
500
#809432
oklch(63.1% 0.125 120)
-
Step 600
600
#6A7E00
oklch(55.7% 0.132 120.1)
-
Step 700
700
#596900
oklch(49% 0.116 119.6)
-
Step 800
800
#485600
oklch(42.6% 0.101 120)
-
Step 900
900
#3C470C
oklch(37.6% 0.081 119.9)
-
Step 950
950 (this color)
#171D00
oklch(21.7% 0.051 119.9)
#171D00 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) | #201A00 | 0.020 |
| Deuteranopia (no green cones) | #1F1B01 | 0.017 |
| Tritanopia (no blue cones) | #191B17 | 0.043 |
| Achromatopsia (no color) | #1A1A1A | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171D00
#171D00
oklch(21.7% 0.051 119.9)
- #1E142E
#1E142E
oklch(21.8% 0.051 300)
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 #171D00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.059
- Very Dark Green #062E03 ΔE 0.061
- Dark Brown #341C02 ΔE 0.061
- Jet #212529 ΔE 0.073
- Rich Black #0D1B2A ΔE 0.080
- Rich Navy #001219 ΔE 0.081
- Almost Black #070D0D ΔE 0.082
- Dark #1B2431 ΔE 0.085
Use #171D00 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.