#516AE7
Closest named color: Royal Blue (#4169E1). oklch(57.4% 0.19 270.7), rgb(81, 106, 231).
Aa
White text reads best on this color (4.59:1).
About this color
#516AE7 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.190 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.020 away. White text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.56:1 |
| White text | 4.59:1 |
Values
| HEX | #516AE7 |
| RGB | rgb(81, 106, 231) |
| HSL | hsl(230, 76%, 61%) |
| OKLCH | oklch(57.4% 0.19 270.7) |
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 #516AE7 | 4.59:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #516AE7 | 4.56:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #516AE7 text on white | 4.59:1 | AA | Lc 71.6 | Content text, not long reading |
| #516AE7 text on black | 4.56:1 | AA | Lc -30.1 | Non-text elements, placeholder text |
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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3E9FB
oklch(93.5% 0.025 271.1)
-
Step 200
200
#CDD8FA
oklch(88.5% 0.048 271.2)
-
Step 300
300
#ACBEF9
oklch(80.9% 0.086 271.2)
-
Step 400
400
#819AF6
oklch(70.6% 0.138 271)
-
Step 500
500
#637EF2
oklch(63% 0.176 270.8)
-
Step 600
600 (this color)
#516AE7
oklch(57.4% 0.19 270.7)
-
Step 700
700
#3E52C3
oklch(49.1% 0.177 270.8)
-
Step 800
800
#33449E
oklch(42.7% 0.147 270.8)
-
Step 900
900
#2C3A7D
oklch(37.6% 0.114 271)
-
Step 950
950
#1A2349
oklch(27.1% 0.071 270.9)
#516AE7 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) | #027CEB | 0.057 |
| Deuteranopia (no green cones) | #006FE4 | 0.050 |
| Tritanopia (no blue cones) | #00889E | 0.159 |
| Achromatopsia (no color) | #757575 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516AE7
#516AE7
oklch(57.4% 0.19 270.7)
- #937500
#937500
oklch(57.5% 0.118 90.8)
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 #516AE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.020
- Neon Blue #4361EE ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.047
- Cerulean Blue #056EEE ΔE 0.048
- Warm Blue #4B57DB ΔE 0.049
- Clear Blue #247AFD ΔE 0.055
- Cornflower #6A79F7 ΔE 0.056
- Medium Slate Blue #7B68EE ΔE 0.058
Use #516AE7 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.