#218C3B
Closest named color: Forest Green (#228B22). oklch(56.3% 0.151 147.2), rgb(33, 140, 59).
Aa
Black text reads best on this color (4.87:1).
About this color
#218C3B is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.151 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.022 away. Black text reads best on it, at 4.87:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.87:1 |
| White text | 4.30:1 |
Values
| HEX | #218C3B |
| RGB | rgb(33, 140, 59) |
| HSL | hsl(135, 62%, 34%) |
| OKLCH | oklch(56.3% 0.151 147.2) |
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 #218C3B | 4.30:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #218C3B | 4.87:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #218C3B text on white | 4.30:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #218C3B text on black | 4.87:1 | AA | Lc -32.3 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE2
oklch(93.7% 0.02 145.4)
-
Step 200
200
#C9E0CB
oklch(88.4% 0.038 147.7)
-
Step 300
300
#A4CDA8
oklch(80.9% 0.067 147.5)
-
Step 400
400
#70B378
oklch(70.6% 0.109 147.2)
-
Step 500
500
#46A055
oklch(63.2% 0.14 147.1)
-
Step 600
600 (this color)
#218C3B
oklch(56.3% 0.151 147.2)
-
Step 700
700
#0B752B
oklch(49.2% 0.141 147.2)
-
Step 800
800
#115F25
oklch(42.6% 0.116 147.3)
-
Step 900
900
#184E23
oklch(37.7% 0.091 147.4)
-
Step 950
950
#102E15
oklch(27.1% 0.058 147.2)
#218C3B 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) | #8E7F33 | 0.119 |
| Deuteranopia (no green cones) | #817641 | 0.117 |
| Tritanopia (no blue cones) | #00897A | 0.089 |
| Achromatopsia (no color) | #7A7A7A | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218C3B
#218C3B
oklch(56.3% 0.151 147.2)
- #A250A3
#A250A3
oklch(56.3% 0.152 326.9)
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 #218C3B, closest first.
No curated palette has a color within ΔE 0.04 of #218C3B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.022
- Kelley Green #009337 ΔE 0.023
- Emerald Green #028F1E ΔE 0.031
- Irish Green #019529 ΔE 0.036
- Jungle Green #048243 ΔE 0.037
- Sea Green #2E8B57 ΔE 0.038
- Dark Grass Green #388004 ΔE 0.042
- Fern Green #548D44 ΔE 0.043
Use #218C3B 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.