#1B4E09
Closest named color: Bottle Green (#044A05). oklch(37.5% 0.111 139.4), rgb(27, 78, 9).
Aa
White text reads best on this color (9.81:1).
About this color
#1B4E09 is a dark, moderately saturated green. In OKLCH its lightness is 37%, its chroma 0.111 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bottle Green (#044A05), ΔE 0.021 away. White text reads best on it, at 9.81:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Bottle Green (#044A05) |
| Black text | 2.14:1 |
| White text | 9.81:1 |
Values
| HEX | #1B4E09 |
| RGB | rgb(27, 78, 9) |
| HSL | hsl(104, 79%, 17%) |
| OKLCH | oklch(37.5% 0.111 139.4) |
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 #1B4E09 | 9.81:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #1B4E09 | 2.14:1 | Fails | Lc 11.5 | Not readable |
| #1B4E09 text on white | 9.81:1 | AAA | Lc 92.4 | Preferred for body text |
| #1B4E09 text on black | 2.14:1 | Fails | Lc -10.0 | 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 900.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CAE1C4
oklch(88.5% 0.046 139.2)
-
Step 300
300
#A5CE9B
oklch(80.9% 0.083 139.6)
-
Step 400
400
#73B462
oklch(70.6% 0.132 139.4)
-
Step 500
500
#4AA130
oklch(63.2% 0.171 139.4)
-
Step 600
600
#2D8A00
oklch(55.6% 0.177 139.4)
-
Step 700
700
#257400
oklch(49.1% 0.156 139.3)
-
Step 800
800
#1D5F00
oklch(42.7% 0.135 139.3)
-
Step 900
900 (this color)
#1B4E09
oklch(37.5% 0.111 139.4)
-
Step 950
950
#122E09
oklch(27% 0.07 139)
#1B4E09 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) | #514600 | 0.074 |
| Deuteranopia (no green cones) | #4A4211 | 0.073 |
| Tritanopia (no blue cones) | #154B41 | 0.075 |
| Achromatopsia (no color) | #444444 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4E09
#1B4E09
oklch(37.5% 0.111 139.4)
- #592A65
#592A65
oklch(37.5% 0.11 319.1)
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 #1B4E09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bottle Green #044A05 ΔE 0.021
- Darkgreen #054907 ΔE 0.023
- Forest #0B5509 ΔE 0.023
- British Racing Green #05480D ΔE 0.026
- Pine Green #0A481E ΔE 0.033
- Racing Green #014600 ΔE 0.034
- Navy Green #35530A ΔE 0.034
- Forrest Green #154406 ΔE 0.035
Use #1B4E09 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.