#3E5366
Closest named color: YInMn Blue (#415A77). oklch(43.3% 0.041 246.2), rgb(62, 83, 102).
Aa
White text reads best on this color (7.97:1).
About this color
#3E5366 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.041 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.97:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #3E5366 |
| RGB | rgb(62, 83, 102) |
| HSL | hsl(209, 24%, 32%) |
| OKLCH | oklch(43.3% 0.041 246.2) |
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 #3E5366 | 7.97:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #3E5366 | 2.63:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #3E5366 text on white | 7.97:1 | AAA | Lc 87.6 | Fine for body text |
| #3E5366 text on black | 2.63:1 | Fails | Lc -14.5 | Not readable |
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 800.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B5C3CF
oklch(81% 0.023 243.9)
-
Step 400
400
#8EA3B8
oklch(70.6% 0.039 248.4)
-
Step 500
500
#728DA6
oklch(63.2% 0.049 246.6)
-
Step 600
600
#5A7791
oklch(55.7% 0.053 246)
-
Step 700
700
#49647B
oklch(49.1% 0.049 244.7)
-
Step 800
800 (this color)
#3E5366
oklch(43.3% 0.041 246.2)
-
Step 900
900
#344352
oklch(37.6% 0.032 248.7)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#3E5366 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) | #4B5367 | 0.019 |
| Deuteranopia (no green cones) | #464F66 | 0.016 |
| Tritanopia (no blue cones) | #305759 | 0.034 |
| Achromatopsia (no color) | #515151 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E5366
#3E5366
oklch(43.3% 0.041 246.2)
- #604C38
#604C38
oklch(43.2% 0.041 66.4)
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 #3E5366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Dusty Grape #545775 ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dusk #4E5481 ΔE 0.052
- Petrol #005F6A ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
- Deep Teal #00555A ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.056
Use #3E5366 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.