#1F511A
Closest named color: Forest (#0B5509). oklch(38.7% 0.101 141.8), rgb(31, 81, 26).
Aa
White text reads best on this color (9.33:1).
About this color
#1F511A is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.101 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.025 away. White text reads best on it, at 9.33:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.25:1 |
| White text | 9.33:1 |
Values
| HEX | #1F511A |
| RGB | rgb(31, 81, 26) |
| HSL | hsl(115, 51%, 21%) |
| OKLCH | oklch(38.7% 0.101 141.8) |
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 #1F511A | 9.33:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #1F511A | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #1F511A text on white | 9.33:1 | AAA | Lc 91.3 | Preferred for body text |
| #1F511A text on black | 2.25:1 | Fails | Lc -11.1 | 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
#CAE1C7
oklch(88.6% 0.043 142)
-
Step 300
300
#A5CEA0
oklch(81% 0.077 142)
-
Step 400
400
#73B46C
oklch(70.8% 0.122 142)
-
Step 500
500
#4BA042
oklch(63.2% 0.155 141.8)
-
Step 600
600
#288A1E
oklch(55.6% 0.168 141.8)
-
Step 700
700
#18750E
oklch(49.1% 0.157 141.9)
-
Step 800
800
#185F11
oklch(42.6% 0.129 141.9)
-
Step 900
900 (this color)
#1F511A
oklch(38.7% 0.101 141.8)
-
Step 950
950
#122E0F
oklch(27% 0.064 141.8)
#1F511A 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) | #534914 | 0.072 |
| Deuteranopia (no green cones) | #4D451F | 0.072 |
| Tritanopia (no blue cones) | #184E45 | 0.066 |
| Achromatopsia (no color) | #474747 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F511A
#1F511A
oklch(38.7% 0.101 141.8)
- #5C2F64
#5C2F64
oklch(38.6% 0.101 321.4)
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 #1F511A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.025
- Navy Green #35530A ΔE 0.026
- Deep Green #02590F ΔE 0.033
- Bottle Green #044A05 ΔE 0.035
- Darkgreen #054907 ΔE 0.037
- Pine Green #0A481E ΔE 0.037
- British Racing Green #05480D ΔE 0.038
- Forrest Green #154406 ΔE 0.046
Use #1F511A 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.