#1B4B0B
Closest named color: Bottle Green (#044A05). oklch(36.6% 0.106 139.4), rgb(27, 75, 11).
Aa
White text reads best on this color (10.20:1).
About this color
#1B4B0B is a dark, moderately saturated green. In OKLCH its lightness is 37%, its chroma 0.106 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 0.016 away. White text reads best on it, at 10.20:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Bottle Green (#044A05) |
| Black text | 2.05:1 |
| White text | 10.20:1 |
Values
| HEX | #1B4B0B |
| RGB | rgb(27, 75, 11) |
| HSL | hsl(105, 74%, 17%) |
| OKLCH | oklch(36.6% 0.106 139.4) |
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 #1B4B0B | 10.20:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #1B4B0B | 2.05:1 | Fails | Lc 10.6 | Not readable |
| #1B4B0B text on white | 10.20:1 | AAA | Lc 93.4 | Preferred for body text |
| #1B4B0B text on black | 2.05:1 | Fails | Lc -9.1 | 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
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CBE1C5
oklch(88.6% 0.044 139)
-
Step 300
300
#A6CE9D
oklch(81% 0.08 139.9)
-
Step 400
400
#75B465
oklch(70.8% 0.128 139.5)
-
Step 500
500
#4EA037
oklch(63.2% 0.162 139.5)
-
Step 600
600
#2D8A01
oklch(55.6% 0.177 139.4)
-
Step 700
700
#257400
oklch(49.1% 0.156 139.3)
-
Step 800
800
#1C5F00
oklch(42.6% 0.136 139.5)
-
Step 900
900 (this color)
#1B4B0B
oklch(36.6% 0.106 139.4)
-
Step 950
950
#132E0B
oklch(27% 0.067 139.2)
#1B4B0B 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) | #4D4300 | 0.069 |
| Deuteranopia (no green cones) | #474012 | 0.069 |
| Tritanopia (no blue cones) | #16483F | 0.072 |
| Achromatopsia (no color) | #414141 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4B0B
#1B4B0B
oklch(36.6% 0.106 139.4)
- #562961
#562961
oklch(36.7% 0.105 319.4)
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 #1B4B0B, 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 0.017
- British Racing Green #05480D ΔE 0.018
- Pine Green #0A481E ΔE 0.025
- Forrest Green #154406 ΔE 0.025
- Racing Green #014600 ΔE 0.027
- Forest #0B5509 ΔE 0.033
- Hunter Green #0B4008 ΔE 0.041
Use #1B4B0B 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.