#516DA0
Closest named color: Muted Blue (#3B719F). oklch(53.5% 0.087 261.8), rgb(81, 109, 160).
Aa
White text reads best on this color (5.19:1).
About this color
#516DA0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.087 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.025 away. White text reads best on it, at 5.19:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.04:1 |
| White text | 5.19:1 |
Values
| HEX | #516DA0 |
| RGB | rgb(81, 109, 160) |
| HSL | hsl(219, 33%, 47%) |
| OKLCH | oklch(53.5% 0.087 261.8) |
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 #516DA0 | 5.19:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #516DA0 | 4.04:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #516DA0 text on white | 5.19:1 | AA | Lc 75.6 | Fine for body text |
| #516DA0 text on black | 4.04:1 | AA large text | Lc -26.1 | 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 600.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D1DAE8
oklch(88.6% 0.022 259.2)
-
Step 300
300
#B3C1DB
oklch(80.9% 0.04 262.9)
-
Step 400
400
#8BA1C8
oklch(70.6% 0.063 261.8)
-
Step 500
500
#6F8ABA
oklch(63.2% 0.079 261.6)
-
Step 600
600 (this color)
#516DA0
oklch(53.5% 0.087 261.8)
-
Step 700
700
#47608F
oklch(49% 0.082 262.4)
-
Step 800
800
#3A4F74
oklch(42.7% 0.067 261.3)
-
Step 900
900
#32425E
oklch(37.8% 0.053 261.3)
-
Step 950
950
#1D2737
oklch(27.1% 0.033 259.6)
#516DA0 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) | #5A71A2 | 0.017 |
| Deuteranopia (no green cones) | #51699F | 0.011 |
| Tritanopia (no blue cones) | #2F787F | 0.078 |
| Achromatopsia (no color) | #6D6D6D | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516DA0
#516DA0
oklch(53.5% 0.087 261.8)
- #87682B
#87682B
oklch(53.6% 0.088 81.7)
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 #516DA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.025
- Flat Blue #3C73A8 ΔE 0.026
- Dull Blue #49759C ΔE 0.026
- French Blue #436BAD ΔE 0.027
- Metallic Blue #4F738E ΔE 0.038
- Cerulean #457B9D ΔE 0.043
- Stormy Blue #507B9C ΔE 0.043
- Dusky Blue #475F94 ΔE 0.045
Use #516DA0 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.