#518F91
Closest named color: Dusty Teal (#4C9085). oklch(60.9% 0.064 198.3), rgb(81, 143, 145).
Aa
Black text reads best on this color (5.68:1).
About this color
#518F91 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.064 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.021 away. Black text reads best on it, at 5.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #518F91 |
| RGB | rgb(81, 143, 145) |
| HSL | hsl(182, 28%, 44%) |
| OKLCH | oklch(60.9% 0.064 198.3) |
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 #518F91 | 3.69:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #518F91 | 5.68:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #518F91 text on white | 3.69:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #518F91 text on black | 5.68:1 | AA | Lc -37.3 | 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
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#AAC7C8
oklch(80.9% 0.031 199.1)
-
Step 400
400
#7BABAC
oklch(70.8% 0.051 197.7)
-
Step 500
500 (this color)
#518F91
oklch(60.9% 0.064 198.3)
-
Step 600
600
#3A8082
oklch(55.6% 0.07 197.9)
-
Step 700
700
#2C6C6E
oklch(49.1% 0.065 198.1)
-
Step 800
800
#26585A
oklch(42.7% 0.054 198.9)
-
Step 900
900
#24484A
oklch(37.6% 0.042 200.2)
-
Step 950
950
#162A2B
oklch(26.9% 0.026 199.8)
#518F91 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) | #878A91 | 0.066 |
| Deuteranopia (no green cones) | #7C8191 | 0.062 |
| Tritanopia (no blue cones) | #32938F | 0.026 |
| Achromatopsia (no color) | #858585 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #518F91
#518F91
oklch(60.9% 0.064 198.3)
- #A67474
#A67474
oklch(61% 0.063 19.1)
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 #518F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.021
- Sea #3C9992 ΔE 0.032
- Teal Green #0A9396 ΔE 0.037
- Grey Teal #5E9B8A ΔE 0.044
- Steel Grey #6F828A ΔE 0.046
- Dark Cyan #008B8B ΔE 0.048
- Persian Green #2A9D8F ΔE 0.048
- Steel #738595 ΔE 0.048
Use #518F91 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.