#517F31
Closest named color: Olive Green (#677A04). oklch(54.5% 0.12 134.4), rgb(81, 127, 49).
Aa
White text reads best on this color (4.74:1).
About this color
#517F31 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.120 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.032 away. White text reads best on it, at 4.74:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #517F31 |
| RGB | rgb(81, 127, 49) |
| HSL | hsl(95, 44%, 35%) |
| OKLCH | oklch(54.5% 0.12 134.4) |
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 #517F31 | 4.74:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #517F31 | 4.42:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #517F31 text on white | 4.74:1 | AA | Lc 72.8 | Content text, not long reading |
| #517F31 text on black | 4.42:1 | AA large text | Lc -28.9 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E6ECE2
oklch(93.6% 0.015 132.5)
-
Step 200
200
#D1DECA
oklch(88.5% 0.03 134.4)
-
Step 300
300
#B2C9A6
oklch(80.9% 0.054 134.9)
-
Step 400
400
#8AAD76
oklch(70.7% 0.086 134.6)
-
Step 500
500
#6D9851
oklch(63.1% 0.11 134.2)
-
Step 600
600 (this color)
#517F31
oklch(54.5% 0.12 134.4)
-
Step 700
700
#446E27
oklch(49.1% 0.111 134.6)
-
Step 800
800
#385A21
oklch(42.8% 0.094 134.6)
-
Step 900
900
#314A21
oklch(37.8% 0.072 134.5)
-
Step 950
950
#1D2B14
oklch(26.9% 0.044 134.1)
#517F31 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) | #847529 | 0.073 |
| Deuteranopia (no green cones) | #7D7237 | 0.072 |
| Tritanopia (no blue cones) | #517A6E | 0.088 |
| Achromatopsia (no color) | #737373 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #517F31
#517F31
oklch(54.5% 0.12 134.4)
- #8A59A0
#8A59A0
oklch(54.6% 0.119 314.7)
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 #517F31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.032
- Military Green #667C3E ΔE 0.034
- Swamp #698339 ΔE 0.035
- Murky Green #6C7A0E ΔE 0.036
- Muddy Green #657432 ΔE 0.040
- Fern Green #548D44 ΔE 0.042
- Dark Grass Green #388004 ΔE 0.042
- Tree Green #2A7E19 ΔE 0.045
Use #517F31 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.