#3E6BDB
Closest named color: Royal Blue (#4169E1). oklch(55.8% 0.179 264.7), rgb(62, 107, 219).
Aa
White text reads best on this color (4.84:1).
About this color
#3E6BDB is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.179 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.011 away. White text reads best on it, at 4.84:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.33:1 |
| White text | 4.84:1 |
Values
| HEX | #3E6BDB |
| RGB | rgb(62, 107, 219) |
| HSL | hsl(223, 69%, 55%) |
| OKLCH | oklch(55.8% 0.179 264.7) |
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 #3E6BDB | 4.84:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #3E6BDB | 4.33:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #3E6BDB text on white | 4.84:1 | AA | Lc 73.2 | Content text, not long reading |
| #3E6BDB text on black | 4.33:1 | AA large text | Lc -28.5 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
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
#A7C0F5
oklch(80.8% 0.08 265)
-
Step 400
400
#799EF1
oklch(70.7% 0.129 265)
-
Step 500
500
#5783EC
oklch(63% 0.165 264.9)
-
Step 600
600 (this color)
#3E6BDB
oklch(55.8% 0.179 264.7)
-
Step 700
700
#3058BD
oklch(49.1% 0.166 264.7)
-
Step 800
800
#284899
oklch(42.6% 0.138 264.9)
-
Step 900
900
#243E7A
oklch(37.8% 0.107 264.3)
-
Step 950
950
#162547
oklch(27.1% 0.066 264.5)
#3E6BDB 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) | #2379DF | 0.037 |
| Deuteranopia (no green cones) | #006BD9 | 0.032 |
| Tritanopia (no blue cones) | #008699 | 0.143 |
| Achromatopsia (no color) | #717171 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E6BDB
#3E6BDB
oklch(55.8% 0.179 264.7)
- #936D00
#936D00
oklch(55.8% 0.114 84.3)
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 #3E6BDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.011
- Neon Blue #4361EE ΔE 0.038
- Cerulean Blue #056EEE ΔE 0.039
- Warm Blue #4B57DB ΔE 0.047
- Azul #1D5DEC ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.054
- Windows Blue #3778BF ΔE 0.059
- Clear Blue #247AFD ΔE 0.060
Use #3E6BDB 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.