#509381
Closest named color: Dusty Teal (#4C9085). oklch(61.3% 0.074 174.3), rgb(80, 147, 129).
Aa
Black text reads best on this color (5.83:1).
About this color
#509381 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.074 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.013 away. Black text reads best on it, at 5.83:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.83:1 |
| White text | 3.60:1 |
Values
| HEX | #509381 |
| RGB | rgb(80, 147, 129) |
| HSL | hsl(164, 30%, 45%) |
| OKLCH | oklch(61.3% 0.074 174.3) |
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 #509381 | 3.60:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #509381 | 5.83:1 | AA | Lc 40.6 | Non-text elements, placeholder text |
| #509381 text on white | 3.60:1 | AA large text | Lc 63.5 | Content text, not long reading |
| #509381 text on black | 5.83:1 | AA | Lc -38.2 | 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 500.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#A9C9BF
oklch(80.9% 0.037 174.5)
-
Step 400
400
#7AAD9E
oklch(70.7% 0.058 174.3)
-
Step 500
500 (this color)
#509381
oklch(61.3% 0.074 174.3)
-
Step 600
600
#378370
oklch(55.7% 0.081 174.2)
-
Step 700
700
#296F5E
oklch(49.2% 0.075 174.3)
-
Step 800
800
#235A4D
oklch(42.7% 0.062 175.2)
-
Step 900
900
#234A40
oklch(37.7% 0.048 174.9)
-
Step 950
950
#152B25
oklch(26.9% 0.03 174.4)
#509381 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) | #8F8C80 | 0.078 |
| Deuteranopia (no green cones) | #848482 | 0.073 |
| Tritanopia (no blue cones) | #38948E | 0.024 |
| Achromatopsia (no color) | #878787 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509381
#509381
oklch(61.3% 0.074 174.3)
- #A87287
#A87287
oklch(61.4% 0.073 354.5)
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 #509381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.013
- Sea #3C9992 ΔE 0.027
- Grey Teal #5E9B8A ΔE 0.030
- Slate Green #658D6D ΔE 0.032
- Persian Green #2A9D8F ΔE 0.034
- Ocean Green #3D9973 ΔE 0.036
- Blue Green #0F9B8E ΔE 0.037
- Dull Teal #5F9E8F ΔE 0.039
Use #509381 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.