#1F4B04
Closest named color: Bottle Green (#044A05). oklch(36.7% 0.108 137.1), rgb(31, 75, 4).
Aa
White text reads best on this color (10.16:1).
About this color
#1F4B04 is a dark, moderately saturated green. In OKLCH its lightness is 37%, its chroma 0.108 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bottle Green (#044A05), ΔE 0.018 away. White text reads best on it, at 10.16:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Bottle Green (#044A05) |
| Black text | 2.06:1 |
| White text | 10.16:1 |
Values
| HEX | #1F4B04 |
| RGB | rgb(31, 75, 4) |
| HSL | hsl(97, 90%, 15%) |
| OKLCH | oklch(36.7% 0.108 137.1) |
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 #1F4B04 | 10.16:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #1F4B04 | 2.06:1 | Fails | Lc 10.6 | Not readable |
| #1F4B04 text on white | 10.16:1 | AAA | Lc 93.3 | Preferred for body text |
| #1F4B04 text on black | 2.06:1 | Fails | Lc -9.2 | 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
#E3EEDF
oklch(93.7% 0.023 137.2)
-
Step 200
200
#CCE1C4
oklch(88.6% 0.045 137)
-
Step 300
300
#A8CD9A
oklch(80.8% 0.08 137.2)
-
Step 400
400
#79B360
oklch(70.7% 0.129 136.9)
-
Step 500
500
#549F2D
oklch(63.1% 0.165 137)
-
Step 600
600
#3B8800
oklch(55.6% 0.169 137.1)
-
Step 700
700
#307300
oklch(49.2% 0.15 137.3)
-
Step 800
800
#265E00
oklch(42.7% 0.13 137.2)
-
Step 900
900 (this color)
#1F4B04
oklch(36.7% 0.108 137.1)
-
Step 950
950
#152E08
oklch(27.1% 0.069 136.8)
#1F4B04 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) | #4E4400 | 0.068 |
| Deuteranopia (no green cones) | #48400D | 0.067 |
| Tritanopia (no blue cones) | #1C483F | 0.077 |
| Achromatopsia (no color) | #414141 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F4B04
#1F4B04
oklch(36.7% 0.108 137.1)
- #552964
#552964
oklch(36.7% 0.108 316.8)
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 #1F4B04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bottle Green #044A05 ΔE 0.018
- Darkgreen #054907 ΔE 0.019
- British Racing Green #05480D ΔE 0.021
- Forrest Green #154406 ΔE 0.027
- Racing Green #014600 ΔE 0.028
- Pine Green #0A481E ΔE 0.029
- Forest #0B5509 ΔE 0.032
- Navy Green #35530A ΔE 0.039
Use #1F4B04 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.