#516AC2
Closest named color: French Blue (#436BAD). oklch(54.9% 0.14 269.4), rgb(81, 106, 194).
Aa
White text reads best on this color (5.01:1).
About this color
#516AC2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.140 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.038 away. White text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.19:1 |
| White text | 5.01:1 |
Values
| HEX | #516AC2 |
| RGB | rgb(81, 106, 194) |
| HSL | hsl(227, 48%, 54%) |
| OKLCH | oklch(54.9% 0.14 269.4) |
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 #516AC2 | 5.01:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #516AC2 | 4.19:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #516AC2 text on white | 5.01:1 | AA | Lc 74.4 | Content text, not long reading |
| #516AC2 text on black | 4.19:1 | AA large text | Lc -27.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D9F1
oklch(88.6% 0.034 269.3)
-
Step 300
300
#B0C0EA
oklch(81% 0.062 268.6)
-
Step 400
400
#879EE0
oklch(70.7% 0.101 269)
-
Step 500
500
#6A84D7
oklch(63% 0.129 269.3)
-
Step 600
600 (this color)
#516AC2
oklch(54.9% 0.14 269.4)
-
Step 700
700
#445AAA
oklch(49.2% 0.13 269.6)
-
Step 800
800
#384A89
oklch(42.7% 0.107 269.5)
-
Step 900
900
#303E6E
oklch(37.7% 0.084 269.8)
-
Step 950
950
#1C2540
oklch(27.1% 0.052 268.8)
#516AC2 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) | #4275C5 | 0.031 |
| Deuteranopia (no green cones) | #316AC0 | 0.033 |
| Tritanopia (no blue cones) | #007E8C | 0.125 |
| Achromatopsia (no color) | #6F6F6F | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516AC2
#516AC2
oklch(54.9% 0.14 269.4)
- #8B6D00
#8B6D00
oklch(54.9% 0.112 89.6)
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 #516AC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.038
- Windows Blue #3778BF ΔE 0.044
- Dark Periwinkle #665FD1 ΔE 0.046
- Mid Blue #276AB3 ΔE 0.048
- Iris #6258C4 ΔE 0.049
- Royal Blue #4169E1 ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.054
- Flat Blue #3C73A8 ΔE 0.056
Use #516AC2 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.