#528F00
Closest named color: Sap Green (#5C8B15). oklch(58.5% 0.165 133), rgb(82, 143, 0).
Aa
Black text reads best on this color (5.28:1).
About this color
#528F00 is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.165 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.019 away. Black text reads best on it, at 5.28:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.28:1 |
| White text | 3.97:1 |
Values
| HEX | #528F00 |
| RGB | rgb(82, 143, 0) |
| HSL | hsl(86, 100%, 28%) |
| OKLCH | oklch(58.5% 0.165 133) |
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 #528F00 | 3.97:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #528F00 | 5.28:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #528F00 text on white | 3.97:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #528F00 text on black | 5.28:1 | AA | Lc -34.9 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
Step 100
100
#E4EDDF
oklch(93.5% 0.021 134.1)
-
Step 200
200
#CFDFC4
oklch(88.4% 0.04 132.4)
-
Step 300
300
#AECB9A
oklch(80.8% 0.074 132.8)
-
Step 400
400
#83B061
oklch(70.6% 0.118 132.9)
-
Step 500
500
#639C2F
oklch(63.1% 0.152 133.1)
-
Step 600
600 (this color)
#528F00
oklch(58.5% 0.165 133)
-
Step 700
700
#3F7000
oklch(49.1% 0.138 133)
-
Step 800
800
#335C00
oklch(42.8% 0.12 132.9)
-
Step 900
900
#2B4C09
oklch(37.7% 0.099 133.1)
-
Step 950
950
#1A2D09
oklch(27.1% 0.063 132.9)
#528F00 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) | #958300 | 0.094 |
| Deuteranopia (no green cones) | #8D7E1B | 0.093 |
| Tritanopia (no blue cones) | #528979 | 0.124 |
| Achromatopsia (no color) | #808080 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528F00
#528F00
oklch(58.5% 0.165 133)
- #9D59C0
#9D59C0
oklch(58.5% 0.164 312.9)
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 #528F00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.019
- Mossy Green #638B27 ΔE 0.032
- Grass Green #3F9B0B ΔE 0.036
- Olive Drab #6B8E23 ΔE 0.036
- Grassy Green #419C03 ΔE 0.038
- Dark Yellow Green #728F02 ΔE 0.038
- Forest Green #228B22 ΔE 0.040
- Irish Green #019529 ΔE 0.041
Use #528F00 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.