#3C4685
Closest named color: Dark Slate Blue (#483D8B). oklch(41.9% 0.105 274.2), rgb(60, 70, 133).
Aa
White text reads best on this color (8.72:1).
About this color
#3C4685 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.105 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.031 away. White text reads best on it, at 8.72:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #3C4685 |
| RGB | rgb(60, 70, 133) |
| HSL | hsl(232, 38%, 38%) |
| OKLCH | oklch(41.9% 0.105 274.2) |
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 #3C4685 | 8.72:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #3C4685 | 2.40:1 | Fails | Lc 14.2 | Not readable |
| #3C4685 text on white | 8.72:1 | AAA | Lc 89.7 | Fine for body text |
| #3C4685 text on black | 2.40:1 | Fails | Lc -12.5 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8F0
oklch(88.5% 0.034 274.5)
-
Step 300
300
#B4BEE9
oklch(80.8% 0.062 274.7)
-
Step 400
400
#8E9CDE
oklch(70.7% 0.098 274.4)
-
Step 500
500
#7382D5
oklch(63.1% 0.126 274.5)
-
Step 600
600
#5C6AC2
oklch(55.6% 0.137 274.3)
-
Step 700
700
#4C58A7
oklch(49.1% 0.126 274.3)
-
Step 800
800 (this color)
#3C4685
oklch(41.9% 0.105 274.2)
-
Step 900
900
#353D6D
oklch(37.7% 0.082 274.6)
-
Step 950
950
#1F2440
oklch(27% 0.052 274.7)
#3C4685 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) | #2A4E87 | 0.029 |
| Deuteranopia (no green cones) | #224884 | 0.030 |
| Tritanopia (no blue cones) | #1A545F | 0.093 |
| Achromatopsia (no color) | #4B4B4B | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C4685
#3C4685
oklch(41.9% 0.105 274.2)
- #5C4B00
#5C4B00
oklch(41.8% 0.086 94)
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 #3C4685, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.035
- Cobalt #1E488F ΔE 0.036
- Dusk Blue #26538D ΔE 0.041
- Twilight #4E518B ΔE 0.044
- Light Navy #155084 ΔE 0.044
- Dusk #4E5481 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.055
Use #3C4685 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.