#3C4A84
Closest named color: Dusk Blue (#26538D). oklch(42.7% 0.098 271.5), rgb(60, 74, 132).
Aa
White text reads best on this color (8.38:1).
About this color
#3C4A84 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.098 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.033 away. White text reads best on it, at 8.38:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #3C4A84 |
| RGB | rgb(60, 74, 132) |
| HSL | hsl(228, 38%, 38%) |
| OKLCH | oklch(42.7% 0.098 271.5) |
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 #3C4A84 | 8.38:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #3C4A84 | 2.50:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #3C4A84 text on white | 8.38:1 | AAA | Lc 88.8 | Fine for body text |
| #3C4A84 text on black | 2.50:1 | Fails | Lc -13.4 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D1D8EF
oklch(88.4% 0.033 272.2)
-
Step 300
300
#B3BFE6
oklch(80.8% 0.057 271.7)
-
Step 400
400
#8C9DDA
oklch(70.6% 0.092 271.9)
-
Step 500
500
#7084D0
oklch(63% 0.117 271.5)
-
Step 600
600
#596DBD
oklch(55.7% 0.126 271.2)
-
Step 700
700
#495AA3
oklch(49% 0.118 271.6)
-
Step 800
800 (this color)
#3C4A84
oklch(42.7% 0.098 271.5)
-
Step 900
900
#333E6A
oklch(37.6% 0.077 271.7)
-
Step 950
950
#1E253E
oklch(27.1% 0.048 271.1)
#3C4A84 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) | #325186 | 0.022 |
| Deuteranopia (no green cones) | #2A4B83 | 0.022 |
| Tritanopia (no blue cones) | #1A5760 | 0.088 |
| Achromatopsia (no color) | #4E4E4E | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C4A84
#3C4A84
oklch(42.7% 0.098 271.5)
- #604C00
#604C00
oklch(42.5% 0.087 91.4)
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 #3C4A84, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.033
- Twilight #4E518B ΔE 0.036
- Cobalt #1E488F ΔE 0.039
- Light Navy #155084 ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.041
- Dusk #4E5481 ΔE 0.042
- Blueberry #464196 ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.046
Use #3C4A84 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.