#516787
Closest named color: Denim (#3B638C). oklch(50.9% 0.058 257.7), rgb(81, 103, 135).
Aa
White text reads best on this color (5.76:1).
About this color
#516787 is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.058 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.032 away. White text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.63:1 |
| White text | 5.76:1 |
Values
| HEX | #516787 |
| RGB | rgb(81, 103, 135) |
| HSL | hsl(216, 25%, 42%) |
| OKLCH | oklch(50.9% 0.058 257.7) |
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 #516787 | 5.76:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #516787 | 3.63:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #516787 text on white | 5.76:1 | AA | Lc 78.8 | Fine for body text |
| #516787 text on black | 3.63:1 | AA large text | Lc -23.0 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D3DAE4
oklch(88.6% 0.016 257.2)
-
Step 300
300
#B6C2D3
oklch(81% 0.027 257)
-
Step 400
400
#90A2BD
oklch(70.7% 0.045 258.4)
-
Step 500
500
#748BAC
oklch(63.1% 0.057 257.4)
-
Step 600
600
#5C7598
oklch(55.7% 0.062 256.9)
-
Step 700
700 (this color)
#516787
oklch(50.9% 0.058 257.7)
-
Step 800
800
#3E5069
oklch(42.7% 0.048 256.7)
-
Step 900
900
#354255
oklch(37.6% 0.037 257.8)
-
Step 950
950
#1F2732
oklch(27% 0.024 256.4)
#516787 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) | #5B6988 | 0.016 |
| Deuteranopia (no green cones) | #556386 | 0.012 |
| Tritanopia (no blue cones) | #3F6E72 | 0.051 |
| Achromatopsia (no color) | #666666 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516787
#516787
oklch(50.9% 0.058 257.7)
- #78623F
#78623F
oklch(50.9% 0.058 78.5)
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 #516787, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.032
- Slate #516572 ΔE 0.033
- Metallic Blue #4F738E ΔE 0.034
- Dusky Blue #475F94 ΔE 0.038
- Muted Blue #3B719F ΔE 0.044
- Dull Blue #49759C ΔE 0.045
- Dusty Grape #545775 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.049
Use #516787 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.