#3D6AEC
Closest named color: Royal Blue (#4169E1). oklch(56.8% 0.203 265.7), rgb(61, 106, 236).
Aa
White text reads best on this color (4.69:1).
About this color
#3D6AEC is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.203 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.017 away. White text reads best on it, at 4.69:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.203) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.47:1 |
| White text | 4.69:1 |
Values
| HEX | #3D6AEC |
| RGB | rgb(61, 106, 236) |
| HSL | hsl(225, 82%, 58%) |
| OKLCH | oklch(56.8% 0.203 265.7) |
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 #3D6AEC | 4.69:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #3D6AEC | 4.47:1 | AA large text | Lc 32.0 | Non-text elements, placeholder text |
| #3D6AEC text on white | 4.69:1 | AA | Lc 72.1 | Content text, not long reading |
| #3D6AEC text on black | 4.47:1 | AA large text | Lc -29.6 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A5C0FC
oklch(80.9% 0.09 265.7)
-
Step 400
400
#759CFB
oklch(70.6% 0.146 265.9)
-
Step 500
500
#5380F9
oklch(63.1% 0.187 265.9)
-
Step 600
600 (this color)
#3D6AEC
oklch(56.8% 0.203 265.7)
-
Step 700
700
#2D54C9
oklch(49.1% 0.187 265.7)
-
Step 800
800
#2545A3
oklch(42.6% 0.157 265.7)
-
Step 900
900
#223C81
oklch(37.8% 0.121 265.4)
-
Step 950
950
#14244C
oklch(27.1% 0.077 265.2)
#3D6AEC 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) | #007CF0 | 0.046 |
| Deuteranopia (no green cones) | #006CE9 | 0.030 |
| Tritanopia (no blue cones) | #008AA1 | 0.160 |
| Achromatopsia (no color) | #747474 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D6AEC
#3D6AEC
oklch(56.8% 0.203 265.7)
- #957100
#957100
oklch(56.9% 0.116 86.4)
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 #3D6AEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.017
- Neon Blue #4361EE ΔE 0.021
- Cerulean Blue #056EEE ΔE 0.028
- Bright Blue #0165FC ΔE 0.041
- Azul #1D5DEC ΔE 0.043
- Clear Blue #247AFD ΔE 0.044
- Warm Blue #4B57DB ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.064
Use #3D6AEC 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.