#218F10
Closest named color: Emerald Green (#028F1E). oklch(56.8% 0.182 141.5), rgb(33, 143, 16).
Aa
Black text reads best on this color (5.00:1).
About this color
#218F10 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.182 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald Green (#028F1E), ΔE 0.009 away. Black text reads best on it, at 5.00:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Emerald Green (#028F1E) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #218F10 |
| RGB | rgb(33, 143, 16) |
| HSL | hsl(112, 80%, 31%) |
| OKLCH | oklch(56.8% 0.182 141.5) |
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 #218F10 | 4.19:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #218F10 | 5.00:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #218F10 text on white | 4.19:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #218F10 text on black | 5.00:1 | AA | Lc -33.3 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C9E1C5
oklch(88.4% 0.046 141.2)
-
Step 300
300
#A3CE9D
oklch(80.8% 0.082 141.6)
-
Step 400
400
#6FB566
oklch(70.7% 0.132 141.6)
-
Step 500
500
#44A139
oklch(63% 0.167 141.6)
-
Step 600
600 (this color)
#218F10
oklch(56.8% 0.182 141.5)
-
Step 700
700
#127600
oklch(49.2% 0.164 141.5)
-
Step 800
800
#0F6003
oklch(42.6% 0.14 141.6)
-
Step 900
900
#184F11
oklch(37.7% 0.109 141.5)
-
Step 950
950
#102E0C
oklch(26.9% 0.068 141.4)
#218F10 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) | #938100 | 0.127 |
| Deuteranopia (no green cones) | #877823 | 0.127 |
| Tritanopia (no blue cones) | #008A79 | 0.120 |
| Achromatopsia (no color) | #7C7C7C | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218F10
#218F10
oklch(56.8% 0.182 141.5)
- #A549B5
#A549B5
oklch(56.7% 0.182 321.5)
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 #218F10, closest first.
No curated palette has a color within ΔE 0.04 of #218F10.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald Green #028F1E ΔE 0.009
- True Green #089404 ΔE 0.017
- Forest Green #228B22 ΔE 0.017
- Irish Green #019529 ΔE 0.019
- Kelley Green #009337 ΔE 0.025
- Grass Green #3F9B0B ΔE 0.043
- Dark Grass Green #388004 ΔE 0.044
- Grassy Green #419C03 ΔE 0.047
Use #218F10 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.