#3746DE
Closest named color: Blue Blue (#2242C7). oklch(49% 0.227 270.5), rgb(55, 70, 222).
Aa
White text reads best on this color (6.78:1).
About this color
#3746DE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.227 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.045 away. White text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.227) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #3746DE |
| RGB | rgb(55, 70, 222) |
| HSL | hsl(235, 72%, 54%) |
| OKLCH | oklch(49% 0.227 270.5) |
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 #3746DE | 6.78:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #3746DE | 3.09:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #3746DE text on white | 6.78:1 | AA | Lc 82.5 | Fine for body text |
| #3746DE text on black | 3.09:1 | AA large text | Lc -19.4 | 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 700.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7D99FF
oklch(70.7% 0.152 270.5)
-
Step 500
500
#5E7BFF
oklch(63.1% 0.198 270.4)
-
Step 600
600
#4458FF
oklch(55.5% 0.245 270.5)
-
Step 700
700 (this color)
#3746DE
oklch(49% 0.227 270.5)
-
Step 800
800
#2D3BB4
oklch(42.7% 0.189 270.6)
-
Step 900
900
#27358E
oklch(37.7% 0.147 270.7)
-
Step 950
950
#162053
oklch(26.9% 0.093 270.5)
#3746DE 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) | #0063E3 | 0.064 |
| Deuteranopia (no green cones) | #0053DB | 0.037 |
| Tritanopia (no blue cones) | #00708D | 0.177 |
| Achromatopsia (no color) | #5B5B5B | 0.228 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3746DE
#3746DE
oklch(49% 0.227 270.5)
- #765D00
#765D00
oklch(49% 0.1 90.4)
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 #3746DE, closest first.
No curated palette has a color within ΔE 0.04 of #3746DE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.045
- Majorelle Blue #3F37C9 ΔE 0.045
- Warm Blue #4B57DB ΔE 0.047
- Azul #1D5DEC ΔE 0.053
- Blurple #5539CC ΔE 0.054
- Blue With A Hint Of Purple #533CC6 ΔE 0.056
- Light Royal Blue #3A2EFE ΔE 0.057
- Vibrant Blue #0339F8 ΔE 0.059
Use #3746DE 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.