#1B4C00
Closest named color: Bottle Green (#044A05). oklch(36.8% 0.114 137.9), rgb(27, 76, 0).
Aa
White text reads best on this color (10.09:1).
About this color
#1B4C00 is a dark, moderately saturated green. In OKLCH its lightness is 37%, its chroma 0.114 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 0.016 away. White text reads best on it, at 10.09:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Bottle Green (#044A05) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #1B4C00 |
| RGB | rgb(27, 76, 0) |
| HSL | hsl(99, 100%, 15%) |
| OKLCH | oklch(36.8% 0.114 137.9) |
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 #1B4C00 | 10.09:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #1B4C00 | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #1B4C00 text on white | 10.09:1 | AAA | Lc 93.1 | Preferred for body text |
| #1B4C00 text on black | 2.08:1 | Fails | Lc -9.4 | 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
#A6CE98
oklch(80.9% 0.085 137.7)
-
Step 400
400
#74B45D
oklch(70.6% 0.136 138)
-
Step 500
500
#4DA027
oklch(63% 0.174 137.9)
-
Step 600
600
#378900
oklch(55.7% 0.172 137.9)
-
Step 700
700
#2D7300
oklch(49.1% 0.151 137.9)
-
Step 800
800
#235E00
oklch(42.6% 0.131 138)
-
Step 900
900 (this color)
#1B4C00
oklch(36.8% 0.114 137.9)
-
Step 950
950
#132E07
oklch(27% 0.071 137.7)
#1B4C00 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) | #4F4400 | 0.074 |
| Deuteranopia (no green cones) | #49400A | 0.073 |
| Tritanopia (no blue cones) | #16493F | 0.079 |
| Achromatopsia (no color) | #424242 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4C00
#1B4C00
oklch(36.8% 0.114 137.9)
- #572765
#572765
oklch(36.7% 0.114 318)
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 #1B4C00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bottle Green #044A05 ΔE 0.016
- Darkgreen #054907 ΔE 0.018
- British Racing Green #05480D ΔE 0.022
- Racing Green #014600 ΔE 0.028
- Forest #0B5509 ΔE 0.028
- Forrest Green #154406 ΔE 0.029
- Pine Green #0A481E ΔE 0.032
- Navy Green #35530A ΔE 0.040
Use #1B4C00 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.