#18582D
Closest named color: Spruce (#0A5F38). oklch(40.9% 0.096 150.5), rgb(24, 88, 45).
Aa
White text reads best on this color (8.49:1).
About this color
#18582D is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.096 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.023 away. White text reads best on it, at 8.49:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #18582D |
| RGB | rgb(24, 88, 45) |
| HSL | hsl(140, 57%, 22%) |
| OKLCH | oklch(40.9% 0.096 150.5) |
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 #18582D | 8.49:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #18582D | 2.47:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #18582D text on white | 8.49:1 | AAA | Lc 88.9 | Fine for body text |
| #18582D text on black | 2.47:1 | Fails | Lc -13.3 | 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 800.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CBDFCF
oklch(88.4% 0.03 151.5)
-
Step 300
300
#A7CBAE
oklch(80.8% 0.056 150.7)
-
Step 400
400
#77B183
oklch(70.8% 0.09 150.1)
-
Step 500
500
#509D64
oklch(63.1% 0.115 150.4)
-
Step 600
600
#30874B
oklch(55.6% 0.124 150.5)
-
Step 700
700
#21723C
oklch(49% 0.115 150.6)
-
Step 800
800 (this color)
#18582D
oklch(40.9% 0.096 150.5)
-
Step 900
900
#1F4C2C
oklch(37.5% 0.074 150.8)
-
Step 950
950
#142D1A
oklch(27.1% 0.047 150)
#18582D 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) | #58502A | 0.079 |
| Deuteranopia (no green cones) | #514B30 | 0.078 |
| Tritanopia (no blue cones) | #00564E | 0.053 |
| Achromatopsia (no color) | #4D4D4D | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18582D
#18582D
oklch(40.9% 0.096 150.5)
- #663562
#663562
oklch(40.9% 0.095 330.2)
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 #18582D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.023
- Pine #2B5D34 ΔE 0.026
- Navy Green #35530A ΔE 0.036
- Deep Green #02590F ΔE 0.036
- Forest #0B5509 ΔE 0.037
- Dark Blue Green #005249 ΔE 0.054
- Pine Green #0A481E ΔE 0.055
- Bottle Green #044A05 ΔE 0.059
Use #18582D 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.