#508C6A
Closest named color: Slate Green (#658D6D). oklch(58.9% 0.082 157.8), rgb(80, 140, 106).
Aa
Black text reads best on this color (5.30:1).
About this color
#508C6A is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.082 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.025 away. Black text reads best on it, at 5.30:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.30:1 |
| White text | 3.96:1 |
Values
| HEX | #508C6A |
| RGB | rgb(80, 140, 106) |
| HSL | hsl(146, 27%, 43%) |
| OKLCH | oklch(58.9% 0.082 157.8) |
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 #508C6A | 3.96:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #508C6A | 5.30:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #508C6A text on white | 3.96:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #508C6A text on black | 5.30:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CFDDD4
oklch(88.4% 0.019 157.8)
-
Step 300
300
#AEC8B7
oklch(80.9% 0.037 156.8)
-
Step 400
400
#82AC92
oklch(70.6% 0.059 157.3)
-
Step 500
500
#619878
oklch(63.2% 0.076 157.8)
-
Step 600
600 (this color)
#508C6A
oklch(58.9% 0.082 157.8)
-
Step 700
700
#376E50
oklch(49.1% 0.077 158)
-
Step 800
800
#2E5A41
oklch(42.8% 0.065 157.3)
-
Step 900
900
#2A4A37
oklch(37.8% 0.05 156.9)
-
Step 950
950
#192B20
oklch(26.9% 0.032 156.7)
#508C6A 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) | #8B8468 | 0.076 |
| Deuteranopia (no green cones) | #827D6C | 0.075 |
| Tritanopia (no blue cones) | #428B83 | 0.039 |
| Achromatopsia (no color) | #808080 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508C6A
#508C6A
oklch(58.9% 0.082 157.8)
- #9D6A8E
#9D6A8E
oklch(58.9% 0.082 338)
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 #508C6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.025
- Dark Sage #598556 ΔE 0.028
- Viridian #1E9167 ΔE 0.037
- Ocean Green #3D9973 ΔE 0.037
- Dusty Teal #4C9085 ΔE 0.038
- Light Forest Green #4F9153 ΔE 0.039
- Sea Green #2E8B57 ΔE 0.042
- Fern Green #548D44 ΔE 0.050
Use #508C6A 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.