#616DE3
Closest named color: Royal Blue (#4169E1). oklch(58.7% 0.177 275.2), rgb(97, 109, 227).
Aa
Black text reads best on this color (4.80:1).
About this color
#616DE3 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.177 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.040 away. Black text reads best on it, at 4.80:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.80:1 |
| White text | 4.37:1 |
Values
| HEX | #616DE3 |
| RGB | rgb(97, 109, 227) |
| HSL | hsl(234, 70%, 64%) |
| OKLCH | oklch(58.7% 0.177 275.2) |
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 #616DE3 | 4.37:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #616DE3 | 4.80:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #616DE3 text on white | 4.37:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #616DE3 text on black | 4.80:1 | AA | Lc -31.7 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F7
oklch(88.4% 0.045 275.7)
-
Step 300
300
#B1BDF5
oklch(80.9% 0.08 275.1)
-
Step 400
400
#8A99F0
oklch(70.7% 0.128 275.2)
-
Step 500
500
#6F7DEA
oklch(63.1% 0.163 275.2)
-
Step 600
600 (this color)
#616DE3
oklch(58.7% 0.177 275.2)
-
Step 700
700
#4952BC
oklch(49.2% 0.165 274.9)
-
Step 800
800
#3C4398
oklch(42.6% 0.137 275.4)
-
Step 900
900
#333A79
oklch(37.8% 0.106 275.3)
-
Step 950
950
#1D2247
oklch(26.9% 0.068 275)
#616DE3 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) | #297EE7 | 0.060 |
| Deuteranopia (no green cones) | #0173E1 | 0.067 |
| Tritanopia (no blue cones) | #03889E | 0.156 |
| Achromatopsia (no color) | #797979 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616DE3
#616DE3
oklch(58.7% 0.177 275.2)
- #937B00
#937B00
oklch(58.8% 0.121 95.3)
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 #616DE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.041
- Medium Slate Blue #7B68EE ΔE 0.041
- Cornflower #6A79F7 ΔE 0.043
- Neon Blue #4361EE ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.053
- Slate Blue #6A5ACD ΔE 0.054
- Warm Blue #4B57DB ΔE 0.064
Use #616DE3 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.