#518F69
Closest named color: Slate Green (#658D6D). oklch(59.7% 0.087 155.7), rgb(81, 143, 105).
Aa
Black text reads best on this color (5.48:1).
About this color
#518F69 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.087 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.024 away. Black text reads best on it, at 5.48:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.48:1 |
| White text | 3.83:1 |
Values
| HEX | #518F69 |
| RGB | rgb(81, 143, 105) |
| HSL | hsl(143, 28%, 44%) |
| OKLCH | oklch(59.7% 0.087 155.7) |
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 #518F69 | 3.83:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #518F69 | 5.48:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #518F69 text on white | 3.83:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #518F69 text on black | 5.48:1 | AA | Lc -36.0 | 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 500.
-
Step 50
50
#F3F7F4
oklch(97.2% 0.006 153.8)
-
Step 100
100
#E4ECE6
oklch(93.5% 0.012 153.7)
-
Step 200
200
#CDDED3
oklch(88.5% 0.024 157.5)
-
Step 300
300
#ABC9B5
oklch(80.8% 0.043 156.1)
-
Step 400
400
#7EAE8F
oklch(70.8% 0.068 155.9)
-
Step 500
500 (this color)
#518F69
oklch(59.7% 0.087 155.7)
-
Step 600
600
#3F845B
oklch(55.7% 0.095 155.5)
-
Step 700
700
#306F4B
oklch(49% 0.088 156)
-
Step 800
800
#295B3E
oklch(42.8% 0.073 156)
-
Step 900
900
#264B35
oklch(37.8% 0.057 156.2)
-
Step 950
950
#172C1F
oklch(27.1% 0.037 155.9)
#518F69 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) | #8F8667 | 0.080 |
| Deuteranopia (no green cones) | #85806B | 0.076 |
| Tritanopia (no blue cones) | #448E85 | 0.043 |
| Achromatopsia (no color) | #828282 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #518F69
#518F69
oklch(59.7% 0.087 155.7)
- #A06B94
#A06B94
oklch(59.7% 0.088 335.2)
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 #518F69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.024
- Ocean Green #3D9973 ΔE 0.030
- Dark Sage #598556 ΔE 0.032
- Light Forest Green #4F9153 ΔE 0.033
- Viridian #1E9167 ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.040
- Sea Green #2E8B57 ΔE 0.042
- Fern Green #548D44 ΔE 0.046
Use #518F69 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.