#509797
Closest named color: Sea (#3C9992). oklch(63% 0.072 195.5), rgb(80, 151, 151).
Aa
Black text reads best on this color (6.21:1).
About this color
#509797 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.072 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.019 away. Black text reads best on it, at 6.21:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.21:1 |
| White text | 3.37:1 |
Values
| HEX | #509797 |
| RGB | rgb(80, 151, 151) |
| HSL | hsl(180, 31%, 45%) |
| OKLCH | oklch(63% 0.072 195.5) |
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 #509797 | 3.37:1 | AA large text | Lc -66.6 | Content text, not long reading |
| Black text on #509797 | 6.21:1 | AA | Lc 43.0 | Non-text elements, placeholder text |
| #509797 text on white | 3.37:1 | AA large text | Lc 61.1 | Content text, not long reading |
| #509797 text on black | 6.21:1 | AA | Lc -40.6 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C8
oklch(80.9% 0.035 196.5)
-
Step 400
400
#77ACAC
oklch(70.8% 0.056 196)
-
Step 500
500 (this color)
#509797
oklch(63% 0.072 195.5)
-
Step 600
600
#308182
oklch(55.5% 0.077 196.3)
-
Step 700
700
#216D6E
oklch(49% 0.072 196.3)
-
Step 800
800
#1E5959
oklch(42.6% 0.06 195.1)
-
Step 900
900
#1F4949
oklch(37.6% 0.047 195.3)
-
Step 950
950
#142B2B
oklch(27% 0.029 195.6)
#509797 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) | #8F9197 | 0.075 |
| Deuteranopia (no green cones) | #838898 | 0.070 |
| Tritanopia (no blue cones) | #289B97 | 0.027 |
| Achromatopsia (no color) | #8C8C8C | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509797
#509797
oklch(63% 0.072 195.5)
- #B0787B
#B0787B
oklch(63.1% 0.071 15.7)
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 #509797, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.019
- Cadet Blue #5F9EA0 ΔE 0.028
- Grey Teal #5E9B8A ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.030
- Dull Teal #5F9E8F ΔE 0.031
- Persian Green #2A9D8F ΔE 0.035
- Teal Green #0A9396 ΔE 0.041
- Blue Green #0F9B8E ΔE 0.041
Use #509797 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.