#516D86
Closest named color: Metallic Blue (#4F738E). oklch(52.3% 0.052 245.9), rgb(81, 109, 134).
Aa
White text reads best on this color (5.41:1).
About this color
#516D86 is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.052 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.019 away. White text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.88:1 |
| White text | 5.41:1 |
Values
| HEX | #516D86 |
| RGB | rgb(81, 109, 134) |
| HSL | hsl(208, 25%, 42%) |
| OKLCH | oklch(52.3% 0.052 245.9) |
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 #516D86 | 5.41:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #516D86 | 3.88:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #516D86 text on white | 5.41:1 | AA | Lc 76.9 | Fine for body text |
| #516D86 text on black | 3.88:1 | AA large text | Lc -24.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B4C3D0
oklch(81% 0.025 244.2)
-
Step 400
400
#8DA4B8
oklch(70.8% 0.039 244.6)
-
Step 500
500
#708DA7
oklch(63.1% 0.051 245.8)
-
Step 600
600
#587792
oklch(55.6% 0.055 245.3)
-
Step 700
700 (this color)
#516D86
oklch(52.3% 0.052 245.9)
-
Step 800
800
#3B5265
oklch(42.8% 0.042 243.9)
-
Step 900
900
#334452
oklch(37.8% 0.032 243.6)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#516D86 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) | #636D87 | 0.024 |
| Deuteranopia (no green cones) | #5C6886 | 0.020 |
| Tritanopia (no blue cones) | #3F7375 | 0.043 |
| Achromatopsia (no color) | #6A6A6A | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516D86
#516D86
oklch(52.3% 0.052 245.9)
- #7E644A
#7E644A
oklch(52.2% 0.051 66.3)
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 #516D86, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.019
- Slate #516572 ΔE 0.034
- Dull Blue #49759C ΔE 0.036
- Muted Blue #3B719F ΔE 0.042
- Denim #3B638C ΔE 0.045
- Stormy Blue #507B9C ΔE 0.046
- Cerulean #457B9D ΔE 0.047
- Battleship Gray #6C757D ΔE 0.049
Use #516D86 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.