#3E5378
Closest named color: YInMn Blue (#415A77). oklch(44.2% 0.067 261.3), rgb(62, 83, 120).
Aa
White text reads best on this color (7.73:1).
About this color
#3E5378 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.067 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.023 away. White text reads best on it, at 7.73:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.71:1 |
| White text | 7.73:1 |
Values
| HEX | #3E5378 |
| RGB | rgb(62, 83, 120) |
| HSL | hsl(218, 32%, 36%) |
| OKLCH | oklch(44.2% 0.067 261.3) |
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 #3E5378 | 7.73:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #3E5378 | 2.71:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #3E5378 text on white | 7.73:1 | AAA | Lc 86.8 | Fine for body text |
| #3E5378 text on black | 2.71:1 | Fails | Lc -15.3 | 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 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
#D1DAE8
oklch(88.6% 0.022 259.2)
-
Step 300
300
#B3C1DA
oklch(80.8% 0.039 262.1)
-
Step 400
400
#8BA1C8
oklch(70.6% 0.063 261.8)
-
Step 500
500
#6E8ABA
oklch(63.1% 0.08 260.9)
-
Step 600
600
#5673A6
oklch(55.5% 0.087 261.3)
-
Step 700
700
#47618F
oklch(49.3% 0.081 261.3)
-
Step 800
800 (this color)
#3E5378
oklch(44.2% 0.067 261.3)
-
Step 900
900
#32425D
oklch(37.8% 0.051 260.6)
-
Step 950
950
#1D2737
oklch(27.1% 0.033 259.6)
#3E5378 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) | #45567A | 0.014 |
| Deuteranopia (no green cones) | #3F5077 | 0.009 |
| Tritanopia (no blue cones) | #275B60 | 0.060 |
| Achromatopsia (no color) | #535353 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E5378
#3E5378
oklch(44.2% 0.067 261.3)
- #664F24
#664F24
oklch(44.2% 0.067 81.1)
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 #3E5378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.023
- Dusk #4E5481 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.032
- Dusty Grape #545775 ΔE 0.036
- Twilight #4E518B ΔE 0.041
- Dusk Blue #26538D ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.044
- Light Navy #155084 ΔE 0.046
Use #3E5378 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.