#5B866F
Closest named color: Slate Green (#658D6D). oklch(58.2% 0.059 160.5), rgb(91, 134, 111).
Aa
Black text reads best on this color (5.08:1).
About this color
#5B866F is a medium-dark, muted green. In OKLCH its lightness is 58%, its chroma 0.059 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.026 away. Black text reads best on it, at 5.08:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.08:1 |
| White text | 4.13:1 |
Values
| HEX | #5B866F |
| RGB | rgb(91, 134, 111) |
| HSL | hsl(148, 19%, 44%) |
| OKLCH | oklch(58.2% 0.059 160.5) |
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 #5B866F | 4.13:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #5B866F | 5.08:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #5B866F text on white | 4.13:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #5B866F text on black | 5.08:1 | AA | Lc -33.3 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D1DCD6
oklch(88.4% 0.014 162.4)
-
Step 300
300
#B2C6BB
oklch(80.8% 0.027 161.8)
-
Step 400
400
#8AA998
oklch(70.6% 0.042 161.1)
-
Step 500
500
#6C947E
oklch(63% 0.055 160.2)
-
Step 600
600 (this color)
#5B866F
oklch(58.2% 0.059 160.5)
-
Step 700
700
#446B56
oklch(49.2% 0.056 159.9)
-
Step 800
800
#385747
oklch(42.7% 0.046 161.2)
-
Step 900
900
#31483B
oklch(37.8% 0.036 159.3)
-
Step 950
950
#1D2A23
oklch(27% 0.022 160.9)
#5B866F 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) | #85806E | 0.057 |
| Deuteranopia (no green cones) | #7E7B70 | 0.055 |
| Tritanopia (no blue cones) | #52867F | 0.025 |
| Achromatopsia (no color) | #7D7D7D | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B866F
#5B866F
oklch(58.2% 0.059 160.5)
- #936D86
#936D86
oklch(58.1% 0.06 339.6)
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 #5B866F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.026
- Dark Sage #598556 ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.036
- Green Grey #77926F ΔE 0.053
- Steel Grey #6F828A ΔE 0.055
- Medium Grey #7D7F7C ΔE 0.056
- Battleship Grey #6B7C85 ΔE 0.056
- Ocean Green #3D9973 ΔE 0.058
Use #5B866F 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.