#1B5018
Closest named color: Forest (#0B5509). oklch(38.2% 0.103 142.4), rgb(27, 80, 24).
Aa
White text reads best on this color (9.51:1).
About this color
#1B5018 is a dark, moderately saturated green. In OKLCH its lightness is 38%, its chroma 0.103 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.024 away. White text reads best on it, at 9.51:1.
| Hue family | Greens |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #1B5018 |
| RGB | rgb(27, 80, 24) |
| HSL | hsl(117, 54%, 20%) |
| OKLCH | oklch(38.2% 0.103 142.4) |
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 #1B5018 | 9.51:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #1B5018 | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #1B5018 text on white | 9.51:1 | AAA | Lc 91.7 | Preferred for body text |
| #1B5018 text on black | 2.20:1 | Fails | Lc -10.7 | 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
#A4CEA0
oklch(80.9% 0.078 142.6)
-
Step 400
400
#71B46B
oklch(70.7% 0.124 142.3)
-
Step 500
500
#47A041
oklch(63% 0.158 142.4)
-
Step 600
600
#218B1C
oklch(55.7% 0.172 142.4)
-
Step 700
700
#10750C
oklch(49% 0.159 142.4)
-
Step 800
800
#136010
oklch(42.8% 0.133 142.4)
-
Step 900
900 (this color)
#1B5018
oklch(38.2% 0.103 142.4)
-
Step 950
950
#112E0F
oklch(27% 0.064 142.4)
#1B5018 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) | #524811 | 0.074 |
| Deuteranopia (no green cones) | #4B441D | 0.073 |
| Tritanopia (no blue cones) | #124D44 | 0.067 |
| Achromatopsia (no color) | #454545 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5018
#1B5018
oklch(38.2% 0.103 142.4)
- #5C2D63
#5C2D63
oklch(38.2% 0.104 322.3)
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 #1B5018, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.024
- Bottle Green #044A05 ΔE 0.030
- Navy Green #35530A ΔE 0.030
- Darkgreen #054907 ΔE 0.031
- Pine Green #0A481E ΔE 0.033
- British Racing Green #05480D ΔE 0.033
- Deep Green #02590F ΔE 0.034
- Forrest Green #154406 ΔE 0.041
Use #1B5018 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.