#528B73
Closest named color: Slate Green (#658D6D). oklch(59% 0.071 165.3), rgb(82, 139, 115).
Aa
Black text reads best on this color (5.29:1).
About this color
#528B73 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.071 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.024 away. Black text reads best on it, at 5.29:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #528B73 |
| RGB | rgb(82, 139, 115) |
| HSL | hsl(155, 26%, 43%) |
| OKLCH | oklch(59% 0.071 165.3) |
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 #528B73 | 3.96:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #528B73 | 5.29:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #528B73 text on white | 3.96:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #528B73 text on black | 5.29:1 | AA | Lc -34.8 | 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
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CFDDD6
oklch(88.5% 0.018 164.6)
-
Step 300
300
#AEC8BC
oklch(81% 0.033 166)
-
Step 400
400
#83AB99
oklch(70.7% 0.051 165.6)
-
Step 500
500
#629680
oklch(63% 0.065 165.9)
-
Step 600
600 (this color)
#528B73
oklch(59% 0.071 165.3)
-
Step 700
700
#396D58
oklch(49.2% 0.066 165.6)
-
Step 800
800
#305948
oklch(42.8% 0.055 165.3)
-
Step 900
900
#2B493C
oklch(37.7% 0.043 165)
-
Step 950
950
#192B23
oklch(27% 0.028 164.8)
#528B73 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) | #898472 | 0.071 |
| Deuteranopia (no green cones) | #807D74 | 0.069 |
| Tritanopia (no blue cones) | #438B84 | 0.027 |
| Achromatopsia (no color) | #808080 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528B73
#528B73
oklch(59% 0.071 165.3)
- #9C6C87
#9C6C87
oklch(58.9% 0.071 344.7)
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 #528B73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.024
- Dusty Teal #4C9085 ΔE 0.026
- Dark Sage #598556 ΔE 0.038
- Ocean Green #3D9973 ΔE 0.044
- Viridian #1E9167 ΔE 0.047
- Sea #3C9992 ΔE 0.050
- Green Grey #77926F ΔE 0.051
- Dark Cyan #008B8B ΔE 0.052
Use #528B73 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.