#517B59
Closest named color: Dark Sage (#598556). oklch(54.2% 0.071 149.5), rgb(81, 123, 89).
Aa
White text reads best on this color (4.85:1).
About this color
#517B59 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.071 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.035 away. White text reads best on it, at 4.85:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #517B59 |
| RGB | rgb(81, 123, 89) |
| HSL | hsl(131, 21%, 40%) |
| OKLCH | oklch(54.2% 0.071 149.5) |
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 #517B59 | 4.85:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #517B59 | 4.32:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #517B59 text on white | 4.85:1 | AA | Lc 73.6 | Content text, not long reading |
| #517B59 text on black | 4.32:1 | AA large text | Lc -28.1 | Dividers and decoration only |
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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE7
oklch(93.7% 0.009 150.7)
-
Step 200
200
#D1DDD3
oklch(88.6% 0.019 150.5)
-
Step 300
300
#B3C7B6
oklch(81% 0.032 149.7)
-
Step 400
400
#8BAA90
oklch(70.7% 0.051 149.6)
-
Step 500
500
#6E9574
oklch(63.2% 0.065 148.9)
-
Step 600
600 (this color)
#517B59
oklch(54.2% 0.071 149.5)
-
Step 700
700
#456B4C
oklch(49% 0.066 149.3)
-
Step 800
800
#39573F
oklch(42.6% 0.053 149.9)
-
Step 900
900
#314835
oklch(37.6% 0.043 149.3)
-
Step 950
950
#1D2A1F
oklch(26.9% 0.027 149)
#517B59 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) | #7C7457 | 0.060 |
| Deuteranopia (no green cones) | #75705B | 0.058 |
| Tritanopia (no blue cones) | #4B7972 | 0.040 |
| Achromatopsia (no color) | #717171 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #517B59
#517B59
oklch(54.2% 0.071 149.5)
- #876083
#876083
oklch(54.2% 0.071 330.1)
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 #517B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.035
- Military Green #667C3E ΔE 0.041
- Muddy Green #657432 ΔE 0.048
- Dark Moss Green #606C38 ΔE 0.051
- Sea Green #2E8B57 ΔE 0.056
- Swamp #698339 ΔE 0.059
- Dark Olive Green #556B2F ΔE 0.060
- Slate Green #658D6D ΔE 0.063
Use #517B59 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.