#218900
Closest named color: Forest Green (#228B22). oklch(55% 0.18 140.7), rgb(33, 137, 0).
Aa
Black text reads best on this color (4.64:1).
About this color
#218900 is a medium-dark, vivid green. In OKLCH its lightness is 55%, its chroma 0.180 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.015 away. Black text reads best on it, at 4.64:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #218900 |
| RGB | rgb(33, 137, 0) |
| HSL | hsl(106, 100%, 27%) |
| OKLCH | oklch(55% 0.18 140.7) |
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 #218900 | 4.52:1 | AA | Lc -76.3 | Fine for body text |
| Black text on #218900 | 4.64:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #218900 text on white | 4.52:1 | AA | Lc 70.8 | Content text, not long reading |
| #218900 text on black | 4.64:1 | AA | Lc -30.8 | 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
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CAE1C5
oklch(88.5% 0.045 140.1)
-
Step 300
300
#A5CE9D
oklch(80.9% 0.08 140.5)
-
Step 400
400
#72B466
oklch(70.6% 0.129 140.6)
-
Step 500
500
#48A138
oklch(63.2% 0.166 140.8)
-
Step 600
600 (this color)
#218900
oklch(55% 0.18 140.7)
-
Step 700
700
#1B7500
oklch(49.1% 0.16 140.7)
-
Step 800
800
#156001
oklch(42.7% 0.139 140.7)
-
Step 900
900
#1A4F10
oklch(37.8% 0.108 140.8)
-
Step 950
950
#112E0C
oklch(26.9% 0.068 140.8)
#218900 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) | #8D7B00 | 0.124 |
| Deuteranopia (no green cones) | #81731A | 0.122 |
| Tritanopia (no blue cones) | #008473 | 0.120 |
| Achromatopsia (no color) | #767676 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218900
#218900
oklch(55% 0.18 140.7)
- #9E45B0
#9E45B0
oklch(55% 0.179 320.6)
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 #218900, closest first.
No curated palette has a color within ΔE 0.04 of #218900.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.015
- Emerald Green #028F1E ΔE 0.018
- Dark Grass Green #388004 ΔE 0.029
- Green #008000 ΔE 0.031
- True Green #089404 ΔE 0.032
- Irish Green #019529 ΔE 0.035
- Kelley Green #009337 ΔE 0.036
- Tree Green #2A7E19 ΔE 0.037
Use #218900 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.