#509178
Closest named color: Dusty Teal (#4C9085). oklch(60.6% 0.078 166.9), rgb(80, 145, 120).
Aa
Black text reads best on this color (5.66:1).
About this color
#509178 is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.078 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.021 away. Black text reads best on it, at 5.66:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #509178 |
| RGB | rgb(80, 145, 120) |
| HSL | hsl(157, 29%, 44%) |
| OKLCH | oklch(60.6% 0.078 166.9) |
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 #509178 | 3.70:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #509178 | 5.66:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #509178 text on white | 3.70:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #509178 text on black | 5.66:1 | AA | Lc -37.1 | 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 500.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#AAC9BB
oklch(80.9% 0.039 166.3)
-
Step 400
400
#7CAD99
oklch(70.7% 0.06 167.5)
-
Step 500
500 (this color)
#509178
oklch(60.6% 0.078 166.9)
-
Step 600
600
#3A8369
oklch(55.6% 0.084 167.3)
-
Step 700
700
#2C6F57
oklch(49.1% 0.079 166.7)
-
Step 800
800
#265A47
oklch(42.6% 0.065 166.8)
-
Step 900
900
#244A3C
oklch(37.6% 0.05 167.6)
-
Step 950
950
#162C23
oklch(27.1% 0.033 165.9)
#509178 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) | #8E8977 | 0.078 |
| Deuteranopia (no green cones) | #84827A | 0.075 |
| Tritanopia (no blue cones) | #3C918A | 0.029 |
| Achromatopsia (no color) | #858585 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509178
#509178
oklch(60.6% 0.078 166.9)
- #A56F8B
#A56F8B
oklch(60.7% 0.078 347.2)
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 #509178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.021
- Slate Green #658D6D ΔE 0.024
- Ocean Green #3D9973 ΔE 0.031
- Sea #3C9992 ΔE 0.038
- Grey Teal #5E9B8A ΔE 0.039
- Persian Green #2A9D8F ΔE 0.042
- Blue Green #0F9B8E ΔE 0.043
- Green Grey #77926F ΔE 0.045
Use #509178 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.