#218F49
Closest named color: Sea Green (#2E8B57). oklch(57.4% 0.143 150.6), rgb(33, 143, 73).
Aa
Black text reads best on this color (5.08:1).
About this color
#218F49 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.143 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.026 away. Black text reads best on it, at 5.08:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #218F49 |
| RGB | rgb(33, 143, 73) |
| HSL | hsl(142, 63%, 35%) |
| OKLCH | oklch(57.4% 0.143 150.6) |
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 #218F49 | 4.12:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #218F49 | 5.08:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #218F49 text on white | 4.12:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #218F49 text on black | 5.08:1 | AA | Lc -33.7 | 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
#E2EEE4
oklch(93.7% 0.018 150.5)
-
Step 200
200
#C9E0CD
oklch(88.4% 0.036 150.5)
-
Step 300
300
#A3CDAB
oklch(80.9% 0.065 150.4)
-
Step 400
400
#6FB37F
oklch(70.7% 0.103 150.6)
-
Step 500
500
#439F5E
oklch(63% 0.131 150.6)
-
Step 600
600 (this color)
#218F49
oklch(57.4% 0.143 150.6)
-
Step 700
700
#027535
oklch(49.2% 0.134 150.4)
-
Step 800
800
#0D5F2D
oklch(42.7% 0.109 150.6)
-
Step 900
900
#174E28
oklch(37.7% 0.086 150.2)
-
Step 950
950
#0F2E18
oklch(27.1% 0.055 150.7)
#218F49 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) | #908243 | 0.119 |
| Deuteranopia (no green cones) | #83794E | 0.117 |
| Tritanopia (no blue cones) | #008D7E | 0.077 |
| Achromatopsia (no color) | #7D7D7D | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218F49
#218F49
oklch(57.4% 0.143 150.6)
- #A6559F
#A6559F
oklch(57.3% 0.142 330.5)
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 #218F49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.026
- Kelley Green #009337 ΔE 0.028
- Fern Green #548D44 ΔE 0.036
- Forest Green #228B22 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.038
- Viridian #1E9167 ΔE 0.039
- Jungle Green #048243 ΔE 0.042
- Irish Green #019529 ΔE 0.043
Use #218F49 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.