#3D6ACD
Closest named color: Royal Blue (#4169E1). oklch(54.6% 0.161 263.6), rgb(61, 106, 205).
Aa
White text reads best on this color (5.07:1).
About this color
#3D6ACD is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.161 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.032 away. White text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.14:1 |
| White text | 5.07:1 |
Values
| HEX | #3D6ACD |
| RGB | rgb(61, 106, 205) |
| HSL | hsl(221, 59%, 52%) |
| OKLCH | oklch(54.6% 0.161 263.6) |
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 #3D6ACD | 5.07:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #3D6ACD | 4.14:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #3D6ACD text on white | 5.07:1 | AA | Lc 74.6 | Content text, not long reading |
| #3D6ACD text on black | 4.14:1 | AA large text | Lc -27.1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCDAF5
oklch(88.6% 0.04 263.7)
-
Step 300
300
#A9C1F0
oklch(80.9% 0.072 263.7)
-
Step 400
400
#7B9FE9
oklch(70.6% 0.116 263.9)
-
Step 500
500
#5A86E3
oklch(63.2% 0.148 263.6)
-
Step 600
600 (this color)
#3D6ACD
oklch(54.6% 0.161 263.6)
-
Step 700
700
#325BB5
oklch(49.2% 0.15 263.5)
-
Step 800
800
#2A4B92
oklch(42.8% 0.123 263.4)
-
Step 900
900
#263F74
oklch(37.7% 0.096 263.5)
-
Step 950
950
#162544
oklch(26.9% 0.061 263.4)
#3D6ACD 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) | #3475D1 | 0.028 |
| Deuteranopia (no green cones) | #0768CB | 0.033 |
| Tritanopia (no blue cones) | #008192 | 0.129 |
| Achromatopsia (no color) | #6E6E6E | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D6ACD
#3D6ACD
oklch(54.6% 0.161 263.6)
- #8F6900
#8F6900
oklch(54.5% 0.112 83.5)
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 #3D6ACD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.032
- Mid Blue #276AB3 ΔE 0.046
- Windows Blue #3778BF ΔE 0.047
- French Blue #436BAD ΔE 0.051
- Warm Blue #4B57DB ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.054
- Cerulean Blue #056EEE ΔE 0.055
- Neon Blue #4361EE ΔE 0.057
Use #3D6ACD 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.