#518FA0
Closest named color: Dusty Blue (#5A86AD). oklch(61.5% 0.069 217.5), rgb(81, 143, 160).
Aa
Black text reads best on this color (5.78:1).
About this color
#518FA0 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.069 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.039 away. Black text reads best on it, at 5.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.78:1 |
| White text | 3.62:1 |
Values
| HEX | #518FA0 |
| RGB | rgb(81, 143, 160) |
| HSL | hsl(193, 33%, 47%) |
| OKLCH | oklch(61.5% 0.069 217.5) |
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 #518FA0 | 3.62:1 | AA large text | Lc -69.2 | Content text, not long reading |
| Black text on #518FA0 | 5.78:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #518FA0 text on white | 3.62:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #518FA0 text on black | 5.78:1 | AA | Lc -37.9 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDCE1
oklch(88.4% 0.019 218.4)
-
Step 300
300
#A9C6CF
oklch(80.8% 0.034 218.5)
-
Step 400
400
#7AA9B7
oklch(70.6% 0.054 218.2)
-
Step 500
500 (this color)
#518FA0
oklch(61.5% 0.069 217.5)
-
Step 600
600
#387E90
oklch(55.6% 0.075 217.2)
-
Step 700
700
#2A6A7B
oklch(49.1% 0.07 218.3)
-
Step 800
800
#245764
oklch(42.8% 0.058 217.1)
-
Step 900
900
#234751
oklch(37.5% 0.045 218)
-
Step 950
950
#152A30
oklch(27% 0.029 218.2)
#518FA0 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) | #848CA1 | 0.061 |
| Deuteranopia (no green cones) | #7882A0 | 0.056 |
| Tritanopia (no blue cones) | #269594 | 0.042 |
| Achromatopsia (no color) | #868686 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #518FA0
#518FA0
oklch(61.5% 0.069 217.5)
- #A97667
#A97667
oklch(61.4% 0.069 37.1)
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 #518FA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.039
- Blue Grey #758DA3 ΔE 0.041
- Steel #738595 ΔE 0.044
- Dusty Teal #4C9085 ΔE 0.044
- Off Blue #5684AE ΔE 0.044
- Light Slate Gray #778899 ΔE 0.044
- Sea #3C9992 ΔE 0.045
- Teal Green #0A9396 ΔE 0.045
Use #518FA0 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.