#528B63
Closest named color: Dark Sage (#598556). oklch(58.6% 0.086 152.5), rgb(82, 139, 99).
Aa
Black text reads best on this color (5.23:1).
About this color
#528B63 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.086 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.020 away. Black text reads best on it, at 5.23:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #528B63 |
| RGB | rgb(82, 139, 99) |
| HSL | hsl(138, 26%, 43%) |
| OKLCH | oklch(58.6% 0.086 152.5) |
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 #528B63 | 4.01:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #528B63 | 5.23:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #528B63 text on white | 4.01:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #528B63 text on black | 5.23:1 | AA | Lc -34.3 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#CFDDD2
oklch(88.4% 0.021 152.2)
-
Step 300
300
#AFC8B5
oklch(80.9% 0.038 152.7)
-
Step 400
400
#84AC8E
oklch(70.7% 0.061 152.3)
-
Step 500
500
#639872
oklch(63.2% 0.08 152.5)
-
Step 600
600 (this color)
#528B63
oklch(58.6% 0.086 152.5)
-
Step 700
700
#3A6E4A
oklch(49.1% 0.081 152.4)
-
Step 800
800
#315A3D
oklch(42.9% 0.067 152.1)
-
Step 900
900
#2B4A34
oklch(37.8% 0.053 152.5)
-
Step 950
950
#1A2B1F
oklch(27% 0.032 153.1)
#528B63 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) | #8B8261 | 0.076 |
| Deuteranopia (no green cones) | #827C65 | 0.074 |
| Tritanopia (no blue cones) | #478980 | 0.045 |
| Achromatopsia (no color) | #7F7F7F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528B63
#528B63
oklch(58.6% 0.086 152.5)
- #9B6992
#9B6992
oklch(58.7% 0.085 333.2)
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 #528B63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.020
- Slate Green #658D6D ΔE 0.028
- Light Forest Green #4F9153 ΔE 0.033
- Viridian #1E9167 ΔE 0.037
- Sea Green #2E8B57 ΔE 0.037
- Ocean Green #3D9973 ΔE 0.041
- Fern Green #548D44 ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.047
Use #528B63 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.