#218B68
Closest named color: Viridian (#1E9167). oklch(56.9% 0.108 165.8), rgb(33, 139, 104).
Aa
Black text reads best on this color (4.95:1).
About this color
#218B68 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.108 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.019 away. Black text reads best on it, at 4.95:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #218B68 |
| RGB | rgb(33, 139, 104) |
| HSL | hsl(160, 62%, 34%) |
| OKLCH | oklch(56.9% 0.108 165.8) |
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 #218B68 | 4.23:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #218B68 | 4.95:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #218B68 text on white | 4.23:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #218B68 text on black | 4.95:1 | AA | Lc -32.8 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#C9DFD5
oklch(88.4% 0.027 166.7)
-
Step 300
300
#A4CBB9
oklch(80.9% 0.049 165.4)
-
Step 400
400
#70B095
oklch(70.6% 0.077 165.7)
-
Step 500
500
#449D7B
oklch(63.2% 0.101 165.4)
-
Step 600
600 (this color)
#218B68
oklch(56.9% 0.108 165.8)
-
Step 700
700
#067253
oklch(49% 0.1 165.9)
-
Step 800
800
#0F5D44
oklch(42.7% 0.083 165.7)
-
Step 900
900
#174C39
oklch(37.6% 0.065 165.8)
-
Step 950
950
#102D22
oklch(27.1% 0.041 166.1)
#218B68 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) | #888166 | 0.107 |
| Deuteranopia (no green cones) | #7A776A | 0.103 |
| Tritanopia (no blue cones) | #008B81 | 0.038 |
| Achromatopsia (no color) | #7B7B7B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218B68
#218B68
oklch(56.9% 0.108 165.8)
- #A45B85
#A45B85
oklch(56.9% 0.109 345.6)
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 #218B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.019
- Sea Green #2E8B57 ΔE 0.024
- Dark Sage #598556 ΔE 0.044
- Ocean Green #3D9973 ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.049
- Dark Cyan #008B8B ΔE 0.053
- Jungle Green #048243 ΔE 0.055
- Fern Green #548D44 ΔE 0.057
Use #218B68 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.