#218E2B
Closest named color: Forest Green (#228B22). oklch(56.7% 0.167 144.1), rgb(33, 142, 43).
Aa
Black text reads best on this color (4.96:1).
About this color
#218E2B is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.167 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.010 away. Black text reads best on it, at 4.96:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.96:1 |
| White text | 4.22:1 |
Values
| HEX | #218E2B |
| RGB | rgb(33, 142, 43) |
| HSL | hsl(126, 62%, 34%) |
| OKLCH | oklch(56.7% 0.167 144.1) |
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 #218E2B | 4.22:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #218E2B | 4.96:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #218E2B text on white | 4.22:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #218E2B text on black | 4.96:1 | AA | Lc -33.0 | 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
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#C9E1C8
oklch(88.5% 0.042 144.1)
-
Step 300
300
#A4CEA2
oklch(81% 0.075 143.7)
-
Step 400
400
#70B46F
oklch(70.7% 0.12 143.9)
-
Step 500
500
#45A048
oklch(63% 0.152 144.1)
-
Step 600
600 (this color)
#218E2B
oklch(56.7% 0.167 144.1)
-
Step 700
700
#087619
oklch(49.2% 0.156 144.1)
-
Step 800
800
#106018
oklch(42.8% 0.129 144.1)
-
Step 900
900
#184F1B
oklch(37.9% 0.1 144.1)
-
Step 950
950
#102E11
oklch(27% 0.063 144.2)
#218E2B 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) | #91801D | 0.122 |
| Deuteranopia (no green cones) | #857834 | 0.122 |
| Tritanopia (no blue cones) | #008A7A | 0.105 |
| Achromatopsia (no color) | #7B7B7B | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218E2B
#218E2B
oklch(56.7% 0.167 144.1)
- #A44DAD
#A44DAD
oklch(56.6% 0.167 323.8)
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 #218E2B, closest first.
No curated palette has a color within ΔE 0.04 of #218E2B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.010
- Emerald Green #028F1E ΔE 0.015
- Kelley Green #009337 ΔE 0.015
- Irish Green #019529 ΔE 0.022
- True Green #089404 ΔE 0.031
- Dark Grass Green #388004 ΔE 0.040
- Sap Green #5C8B15 ΔE 0.045
- Tree Green #2A7E19 ΔE 0.047
Use #218E2B 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.