#1F551C
Closest named color: Forest (#0B5509). oklch(39.9% 0.105 142.5), rgb(31, 85, 28).
Aa
White text reads best on this color (8.84:1).
About this color
#1F551C is a dark, moderately saturated green. In OKLCH its lightness is 40%, its chroma 0.105 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.022 away. White text reads best on it, at 8.84:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.37:1 |
| White text | 8.84:1 |
Values
| HEX | #1F551C |
| RGB | rgb(31, 85, 28) |
| HSL | hsl(117, 50%, 22%) |
| OKLCH | oklch(39.9% 0.105 142.5) |
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 #1F551C | 8.84:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #1F551C | 2.37:1 | Fails | Lc 14.0 | Not readable |
| #1F551C text on white | 8.84:1 | AAA | Lc 90.0 | Fine for body text |
| #1F551C text on black | 2.37:1 | Fails | Lc -12.3 | 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 900.
-
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
#A4CE9F
oklch(80.9% 0.079 142.1)
-
Step 400
400
#70B46A
oklch(70.6% 0.126 142.3)
-
Step 500
500
#45A140
oklch(63.2% 0.161 142.5)
-
Step 600
600
#1D8B19
oklch(55.6% 0.175 142.4)
-
Step 700
700
#0A7608
oklch(49.2% 0.163 142.5)
-
Step 800
800
#10600E
oklch(42.7% 0.135 142.5)
-
Step 900
900 (this color)
#1F551C
oklch(39.9% 0.105 142.5)
-
Step 950
950
#102E0E
oklch(26.9% 0.066 142.4)
#1F551C 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) | #574D16 | 0.075 |
| Deuteranopia (no green cones) | #504821 | 0.075 |
| Tritanopia (no blue cones) | #165249 | 0.068 |
| Achromatopsia (no color) | #4A4A4A | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F551C
#1F551C
oklch(39.9% 0.105 142.5)
- #613168
#613168
oklch(39.9% 0.105 322.4)
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 #1F551C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.022
- Navy Green #35530A ΔE 0.022
- Deep Green #02590F ΔE 0.025
- Pine #2B5D34 ΔE 0.039
- Spruce #0A5F38 ΔE 0.039
- Bottle Green #044A05 ΔE 0.045
- Darkgreen #054907 ΔE 0.047
- Pine Green #0A481E ΔE 0.049
Use #1F551C 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.