#3C65D7
Closest named color: Royal Blue (#4169E1). oklch(54.2% 0.181 265.7), rgb(60, 101, 215).
Aa
White text reads best on this color (5.20:1).
About this color
#3C65D7 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.181 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.019 away. White text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #3C65D7 |
| RGB | rgb(60, 101, 215) |
| HSL | hsl(224, 66%, 54%) |
| OKLCH | oklch(54.2% 0.181 265.7) |
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 #3C65D7 | 5.20:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #3C65D7 | 4.03:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #3C65D7 text on white | 5.20:1 | AA | Lc 75.4 | Fine for body text |
| #3C65D7 text on black | 4.03:1 | AA large text | Lc -26.4 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A8C0F6
oklch(80.9% 0.081 266)
-
Step 400
400
#7A9EF2
oklch(70.8% 0.13 265.6)
-
Step 500
500
#5983ED
oklch(63.2% 0.166 265.6)
-
Step 600
600 (this color)
#3C65D7
oklch(54.2% 0.181 265.7)
-
Step 700
700
#3257BF
oklch(49.1% 0.169 265.7)
-
Step 800
800
#2A489A
oklch(42.8% 0.139 265.7)
-
Step 900
900
#263D7B
oklch(37.7% 0.109 266)
-
Step 950
950
#162448
oklch(26.9% 0.07 265.9)
#3C65D7 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) | #0F74DB | 0.041 |
| Deuteranopia (no green cones) | #0066D5 | 0.032 |
| Tritanopia (no blue cones) | #008194 | 0.146 |
| Achromatopsia (no color) | #6D6D6D | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C65D7
#3C65D7
oklch(54.2% 0.181 265.7)
- #8C6900
#8C6900
oklch(54.1% 0.111 85.5)
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 #3C65D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.019
- Warm Blue #4B57DB ΔE 0.035
- Neon Blue #4361EE ΔE 0.037
- Cerulean Blue #056EEE ΔE 0.045
- Azul #1D5DEC ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.052
- Iris #6258C4 ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.062
Use #3C65D7 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.