#5B8D18
Closest named color: Sap Green (#5C8B15). oklch(58.6% 0.15 131), rgb(91, 141, 24).
Aa
Black text reads best on this color (5.26:1).
About this color
#5B8D18 is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.150 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.006 away. Black text reads best on it, at 5.26:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.26:1 |
| White text | 3.98:1 |
Values
| HEX | #5B8D18 |
| RGB | rgb(91, 141, 24) |
| HSL | hsl(86, 71%, 32%) |
| OKLCH | oklch(58.6% 0.15 131) |
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 #5B8D18 | 3.98:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #5B8D18 | 5.26:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #5B8D18 text on white | 3.98:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #5B8D18 text on black | 5.26:1 | AA | Lc -34.7 | 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
#E5EDDF
oklch(93.6% 0.02 131.5)
-
Step 200
200
#D0DFC5
oklch(88.5% 0.039 131.9)
-
Step 300
300
#B1CA9D
oklch(80.9% 0.067 131.5)
-
Step 400
400
#89AF65
oklch(70.8% 0.109 130.9)
-
Step 500
500
#6B9A37
oklch(63.1% 0.139 131)
-
Step 600
600 (this color)
#5B8D18
oklch(58.6% 0.15 131)
-
Step 700
700
#446F00
oklch(49.1% 0.134 131.1)
-
Step 800
800
#375B01
oklch(42.7% 0.116 131.1)
-
Step 900
900
#304B10
oklch(37.8% 0.09 131.1)
-
Step 950
950
#1C2C0B
oklch(27% 0.058 131.2)
#5B8D18 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) | #948200 | 0.081 |
| Deuteranopia (no green cones) | #8D7E26 | 0.082 |
| Tritanopia (no blue cones) | #5D8778 | 0.115 |
| Achromatopsia (no color) | #7F7F7F | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8D18
#5B8D18
oklch(58.6% 0.15 131)
- #985EBD
#985EBD
oklch(58.5% 0.151 310.7)
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 #5B8D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.006
- Mossy Green #638B27 ΔE 0.016
- Olive Drab #6B8E23 ΔE 0.022
- Dark Yellow Green #728F02 ΔE 0.029
- Moss Green #658B38 ΔE 0.031
- Swamp Green #748500 ΔE 0.035
- Fern Green #548D44 ΔE 0.035
- Forest Green #228B22 ΔE 0.047
Use #5B8D18 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.