#508A71
Closest named color: Slate Green (#658D6D). oklch(58.6% 0.073 164.6), rgb(80, 138, 113).
Aa
Black text reads best on this color (5.21:1).
About this color
#508A71 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.073 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 0.026 away. Black text reads best on it, at 5.21:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.21:1 |
| White text | 4.02:1 |
Values
| HEX | #508A71 |
| RGB | rgb(80, 138, 113) |
| HSL | hsl(154, 27%, 43%) |
| OKLCH | oklch(58.6% 0.073 164.6) |
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 #508A71 | 4.02:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #508A71 | 5.21:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #508A71 text on white | 4.02:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #508A71 text on black | 5.21:1 | AA | Lc -34.2 | 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
#AEC8BB
oklch(81% 0.033 164)
-
Step 400
400
#82AB98
oklch(70.6% 0.052 164.9)
-
Step 500
500
#62977F
oklch(63.2% 0.067 164.2)
-
Step 600
600 (this color)
#508A71
oklch(58.6% 0.073 164.6)
-
Step 700
700
#386D57
oklch(49.1% 0.068 164.9)
-
Step 800
800
#2F5947
oklch(42.8% 0.056 164.4)
-
Step 900
900
#2A493C
oklch(37.7% 0.044 165.6)
-
Step 950
950
#192B23
oklch(27% 0.028 164.8)
#508A71 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) | #888370 | 0.072 |
| Deuteranopia (no green cones) | #7F7C73 | 0.070 |
| Tritanopia (no blue cones) | #408A83 | 0.029 |
| Achromatopsia (no color) | #7F7F7F | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508A71
#508A71
oklch(58.6% 0.073 164.6)
- #9C6B86
#9C6B86
oklch(58.7% 0.072 345.4)
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 #508A71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.026
- Dusty Teal #4C9085 ΔE 0.029
- Dark Sage #598556 ΔE 0.035
- Ocean Green #3D9973 ΔE 0.045
- Viridian #1E9167 ΔE 0.045
- Sea Green #2E8B57 ΔE 0.052
- Dark Cyan #008B8B ΔE 0.052
- Light Forest Green #4F9153 ΔE 0.053
Use #508A71 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.