#51872F
Closest named color: Fern Green (#548D44). oklch(56.6% 0.133 135.3), rgb(81, 135, 47).
Aa
Black text reads best on this color (4.85:1).
About this color
#51872F is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.133 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.025 away. Black text reads best on it, at 4.85:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #51872F |
| RGB | rgb(81, 135, 47) |
| HSL | hsl(97, 48%, 36%) |
| OKLCH | oklch(56.6% 0.133 135.3) |
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 #51872F | 4.32:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #51872F | 4.85:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #51872F text on white | 4.32:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #51872F text on black | 4.85:1 | AA | Lc -31.9 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5EDE1
oklch(93.7% 0.018 134.9)
-
Step 200
200
#D0DEC9
oklch(88.4% 0.032 135)
-
Step 300
300
#B0CAA3
oklch(80.9% 0.061 135.2)
-
Step 400
400
#86AE71
oklch(70.6% 0.096 135.3)
-
Step 500
500
#679A4B
oklch(63.1% 0.123 135.6)
-
Step 600
600 (this color)
#51872F
oklch(56.6% 0.133 135.3)
-
Step 700
700
#3F701E
oklch(49.3% 0.124 135.3)
-
Step 800
800
#345B1B
oklch(42.7% 0.103 135.4)
-
Step 900
900
#2E4B1D
oklch(37.8% 0.08 135.4)
-
Step 950
950
#1B2C12
oklch(27% 0.05 135.7)
#51872F 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) | #8C7C24 | 0.082 |
| Deuteranopia (no green cones) | #847836 | 0.081 |
| Tritanopia (no blue cones) | #508275 | 0.097 |
| Achromatopsia (no color) | #797979 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51872F
#51872F
oklch(56.6% 0.133 135.3)
- #945BAB
#945BAB
oklch(56.6% 0.133 315.6)
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 #51872F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.025
- Sap Green #5C8B15 ΔE 0.025
- Mossy Green #638B27 ΔE 0.026
- Moss Green #658B38 ΔE 0.029
- Swamp #698339 ΔE 0.035
- Olive Drab #6B8E23 ΔE 0.040
- Olive Green #677A04 ΔE 0.041
- Forest Green #228B22 ΔE 0.042
Use #51872F 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.