#218C65
Closest named color: Viridian (#1E9167). oklch(57.1% 0.112 163.5), rgb(33, 140, 101).
Aa
Black text reads best on this color (5.00:1).
About this color
#218C65 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.112 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.015 away. Black text reads best on it, at 5.00:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #218C65 |
| RGB | rgb(33, 140, 101) |
| HSL | hsl(158, 62%, 34%) |
| OKLCH | oklch(57.1% 0.112 163.5) |
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 #218C65 | 4.19:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #218C65 | 5.00:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #218C65 text on white | 4.19:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #218C65 text on black | 5.00:1 | AA | Lc -33.1 | 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
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#C9DFD4
oklch(88.4% 0.028 164.3)
-
Step 300
300
#A4CBB8
oklch(80.9% 0.049 164.1)
-
Step 400
400
#70B193
oklch(70.8% 0.08 163.5)
-
Step 500
500
#449D78
oklch(63.1% 0.103 163.5)
-
Step 600
600 (this color)
#218C65
oklch(57.1% 0.112 163.5)
-
Step 700
700
#047350
oklch(49.2% 0.105 163.4)
-
Step 800
800
#0E5D41
oklch(42.6% 0.086 163.3)
-
Step 900
900
#174D37
oklch(37.8% 0.068 162.7)
-
Step 950
950
#102D21
oklch(27.1% 0.042 164)
#218C65 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) | #898163 | 0.109 |
| Deuteranopia (no green cones) | #7C7868 | 0.105 |
| Tritanopia (no blue cones) | #008C81 | 0.042 |
| Achromatopsia (no color) | #7C7C7C | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218C65
#218C65
oklch(57.1% 0.112 163.5)
- #A55B89
#A55B89
oklch(57.2% 0.113 343.2)
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 #218C65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.015
- Sea Green #2E8B57 ΔE 0.019
- Dark Sage #598556 ΔE 0.044
- Light Forest Green #4F9153 ΔE 0.044
- Ocean Green #3D9973 ΔE 0.046
- Jungle Green #048243 ΔE 0.052
- Fern Green #548D44 ΔE 0.052
- Dark Cyan #008B8B ΔE 0.059
Use #218C65 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.