#218C47
Closest named color: Sea Green (#2E8B57). oklch(56.5% 0.14 150.4), rgb(33, 140, 71).
Aa
Black text reads best on this color (4.90:1).
About this color
#218C47 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.140 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.024 away. Black text reads best on it, at 4.90:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.90:1 |
| White text | 4.27:1 |
Values
| HEX | #218C47 |
| RGB | rgb(33, 140, 71) |
| HSL | hsl(141, 62%, 34%) |
| OKLCH | oklch(56.5% 0.14 150.4) |
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 #218C47 | 4.27:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #218C47 | 4.90:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #218C47 text on white | 4.27:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #218C47 text on black | 4.90:1 | AA | Lc -32.5 | 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
#A4CDAC
oklch(81% 0.063 150.6)
-
Step 400
400
#70B37F
oklch(70.8% 0.102 150.3)
-
Step 500
500
#459F5F
oklch(63.1% 0.129 150.6)
-
Step 600
600 (this color)
#218C47
oklch(56.5% 0.14 150.4)
-
Step 700
700
#097436
oklch(49% 0.13 150.5)
-
Step 800
800
#105F2D
oklch(42.8% 0.109 150.3)
-
Step 900
900
#184E29
oklch(37.8% 0.084 150.6)
-
Step 950
950
#102E18
oklch(27.1% 0.054 150.1)
#218C47 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) | #8D8041 | 0.116 |
| Deuteranopia (no green cones) | #80774C | 0.114 |
| Tritanopia (no blue cones) | #008A7C | 0.077 |
| Achromatopsia (no color) | #7A7A7A | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218C47
#218C47
oklch(56.5% 0.14 150.4)
- #A3539C
#A3539C
oklch(56.5% 0.141 330.6)
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 #218C47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.024
- Kelley Green #009337 ΔE 0.033
- Jungle Green #048243 ΔE 0.033
- Forest Green #228B22 ΔE 0.035
- Fern Green #548D44 ΔE 0.039
- Viridian #1E9167 ΔE 0.041
- Light Forest Green #4F9153 ΔE 0.042
- Emerald Green #028F1E ΔE 0.044
Use #218C47 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.