#3B4E75
Closest named color: YInMn Blue (#415A77). oklch(42.6% 0.069 263.9), rgb(59, 78, 117).
Aa
White text reads best on this color (8.29:1).
About this color
#3B4E75 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.069 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.038 away. White text reads best on it, at 8.29:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.53:1 |
| White text | 8.29:1 |
Values
| HEX | #3B4E75 |
| RGB | rgb(59, 78, 117) |
| HSL | hsl(220, 33%, 35%) |
| OKLCH | oklch(42.6% 0.069 263.9) |
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 #3B4E75 | 8.29:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #3B4E75 | 2.53:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #3B4E75 text on white | 8.29:1 | AAA | Lc 88.6 | Fine for body text |
| #3B4E75 text on black | 2.53:1 | Fails | Lc -13.6 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D2D9E9
oklch(88.5% 0.023 266.9)
-
Step 300
300
#B3C1DC
oklch(80.9% 0.041 263.6)
-
Step 400
400
#8CA1CA
oklch(70.8% 0.065 263.6)
-
Step 500
500
#7089BC
oklch(63.1% 0.083 264)
-
Step 600
600
#5872A8
oklch(55.5% 0.09 264.1)
-
Step 700
700
#486091
oklch(49.2% 0.084 263.7)
-
Step 800
800 (this color)
#3B4E75
oklch(42.6% 0.069 263.9)
-
Step 900
900
#33415F
oklch(37.7% 0.055 264.7)
-
Step 950
950
#1E2637
oklch(26.9% 0.034 264.8)
#3B4E75 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) | #3F5177 | 0.011 |
| Deuteranopia (no green cones) | #394C74 | 0.007 |
| Tritanopia (no blue cones) | #24565C | 0.062 |
| Achromatopsia (no color) | #4E4E4E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4E75
#3B4E75
oklch(42.6% 0.069 263.9)
- #614B1D
#614B1D
oklch(42.6% 0.069 83.2)
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 #3B4E75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.038
- Dusk #4E5481 ΔE 0.039
- Light Navy #155084 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.042
- Dusk Blue #26538D ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.045
- Twilight #4E518B ΔE 0.047
- Dusty Grape #545775 ΔE 0.048
Use #3B4E75 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.