#1B5318
Closest named color: Forest (#0B5509). oklch(39.1% 0.107 142.4), rgb(27, 83, 24).
Aa
White text reads best on this color (9.14:1).
About this color
#1B5318 is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.107 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.018 away. White text reads best on it, at 9.14:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #1B5318 |
| RGB | rgb(27, 83, 24) |
| HSL | hsl(117, 55%, 21%) |
| OKLCH | oklch(39.1% 0.107 142.4) |
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 #1B5318 | 9.14:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #1B5318 | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #1B5318 text on white | 9.14:1 | AAA | Lc 90.7 | Preferred for body text |
| #1B5318 text on black | 2.29:1 | Fails | Lc -11.6 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C9E1C6
oklch(88.5% 0.045 142.1)
-
Step 300
300
#A3CE9F
oklch(80.8% 0.079 142.6)
-
Step 400
400
#6FB569
oklch(70.8% 0.129 142.4)
-
Step 500
500
#43A13D
oklch(63.1% 0.164 142.4)
-
Step 600
600
#188B14
oklch(55.5% 0.178 142.4)
-
Step 700
700
#027601
oklch(49.1% 0.166 142.5)
-
Step 800
800
#0C600A
oklch(42.6% 0.137 142.5)
-
Step 900
900 (this color)
#1B5318
oklch(39.1% 0.107 142.4)
-
Step 950
950
#0F2E0D
oklch(26.9% 0.068 142.4)
#1B5318 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) | #554B11 | 0.076 |
| Deuteranopia (no green cones) | #4E461D | 0.077 |
| Tritanopia (no blue cones) | #115047 | 0.070 |
| Achromatopsia (no color) | #484848 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5318
#1B5318
oklch(39.1% 0.107 142.4)
- #5F2E67
#5F2E67
oklch(39% 0.108 321.8)
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 #1B5318, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.018
- Deep Green #02590F ΔE 0.025
- Navy Green #35530A ΔE 0.026
- Bottle Green #044A05 ΔE 0.037
- Darkgreen #054907 ΔE 0.039
- British Racing Green #05480D ΔE 0.041
- Pine Green #0A481E ΔE 0.042
- Spruce #0A5F38 ΔE 0.046
Use #1B5318 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.