#516C90
Closest named color: Metallic Blue (#4F738E). oklch(52.5% 0.066 255.8), rgb(81, 108, 144).
Aa
White text reads best on this color (5.38:1).
About this color
#516C90 is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.066 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.022 away. White text reads best on it, at 5.38:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #516C90 |
| RGB | rgb(81, 108, 144) |
| HSL | hsl(214, 28%, 44%) |
| OKLCH | oklch(52.5% 0.066 255.8) |
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 #516C90 | 5.38:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #516C90 | 3.89:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #516C90 text on white | 5.38:1 | AA | Lc 76.8 | Fine for body text |
| #516C90 text on black | 3.89:1 | AA large text | Lc -25.0 | 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 600.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE4
oklch(88.5% 0.016 253.9)
-
Step 300
300
#B4C2D4
oklch(80.9% 0.03 254.7)
-
Step 400
400
#8EA2BE
oklch(70.6% 0.047 256.8)
-
Step 500
500
#728BAE
oklch(63% 0.06 256.8)
-
Step 600
600 (this color)
#516C90
oklch(52.5% 0.066 255.8)
-
Step 700
700
#4A6283
oklch(49.1% 0.061 256.5)
-
Step 800
800
#3D506B
oklch(42.7% 0.051 257.2)
-
Step 900
900
#344356
oklch(37.8% 0.038 254.6)
-
Step 950
950
#1E2733
oklch(27% 0.026 255.7)
#516C90 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) | #5F6E92 | 0.020 |
| Deuteranopia (no green cones) | #57688F | 0.013 |
| Tritanopia (no blue cones) | #3A7478 | 0.058 |
| Achromatopsia (no color) | #6A6A6A | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516C90
#516C90
oklch(52.5% 0.066 255.8)
- #80653E
#80653E
oklch(52.4% 0.065 75.7)
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 #516C90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.022
- Dull Blue #49759C ΔE 0.028
- Muted Blue #3B719F ΔE 0.031
- Denim #3B638C ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.041
- Cerulean #457B9D ΔE 0.043
- Stormy Blue #507B9C ΔE 0.043
- Dusky Blue #475F94 ΔE 0.044
Use #516C90 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.