#1B4E00
Closest named color: Bottle Green (#044A05). oklch(37.4% 0.116 138.1), rgb(27, 78, 0).
Aa
White text reads best on this color (9.82:1).
About this color
#1B4E00 is a dark, moderately saturated green. In OKLCH its lightness is 37%, its chroma 0.116 and its hue 138°. 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 9.82:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Bottle Green (#044A05) |
| Black text | 2.13:1 |
| White text | 9.82:1 |
Values
| HEX | #1B4E00 |
| RGB | rgb(27, 78, 0) |
| HSL | hsl(99, 100%, 15%) |
| OKLCH | oklch(37.4% 0.116 138.1) |
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 #1B4E00 | 9.82:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #1B4E00 | 2.13:1 | Fails | Lc 11.5 | Not readable |
| #1B4E00 text on white | 9.82:1 | AAA | Lc 92.4 | Preferred for body text |
| #1B4E00 text on black | 2.13:1 | 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
#E2EEDE
oklch(93.6% 0.025 137.8)
-
Step 200
200
#CAE1C3
oklch(88.5% 0.047 138.4)
-
Step 300
300
#A5CE98
oklch(80.8% 0.086 138.3)
-
Step 400
400
#73B55C
oklch(70.8% 0.139 138.1)
-
Step 500
500
#4AA124
oklch(63.1% 0.178 138.3)
-
Step 600
600
#358900
oklch(55.6% 0.173 138.2)
-
Step 700
700
#2C7300
oklch(49.1% 0.152 138.1)
-
Step 800
800
#225E00
oklch(42.5% 0.132 138.2)
-
Step 900
900 (this color)
#1B4E00
oklch(37.4% 0.116 138.1)
-
Step 950
950
#122E06
oklch(26.9% 0.073 137.9)
#1B4E00 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 | 0.076 |
| Deuteranopia (no green cones) | #4B420A | 0.075 |
| Tritanopia (no blue cones) | #164B41 | 0.081 |
| Achromatopsia (no color) | #434343 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4E00
#1B4E00
oklch(37.4% 0.116 138.1)
- #592868
#592868
oklch(37.4% 0.116 317.6)
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 #1B4E00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bottle Green #044A05 ΔE 0.021
- Forest #0B5509 ΔE 0.022
- Darkgreen #054907 ΔE 0.024
- British Racing Green #05480D ΔE 0.028
- Racing Green #014600 ΔE 0.034
- Deep Green #02590F ΔE 0.034
- Navy Green #35530A ΔE 0.036
- Forrest Green #154406 ΔE 0.036
Use #1B4E00 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.