#3C357E
Closest named color: Dark Slate Blue (#483D8B). oklch(37.9% 0.119 283.5), rgb(60, 53, 126).
Aa
White text reads best on this color (10.48:1).
About this color
#3C357E is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.119 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 10.48:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.48:1 |
Values
| HEX | #3C357E |
| RGB | rgb(60, 53, 126) |
| HSL | hsl(246, 41%, 35%) |
| OKLCH | oklch(37.9% 0.119 283.5) |
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 #3C357E | 10.48:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #3C357E | 2.00:1 | Fails | Lc 9.9 | Not readable |
| #3C357E text on white | 10.48:1 | AAA | Lc 94.1 | Preferred for body text |
| #3C357E text on black | 2.00:1 | Fails | Lc -8.5 | 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 900.
-
Step 50
50
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FB
oklch(93.6% 0.026 283.5)
-
Step 200
200
#D4D6FA
oklch(88.6% 0.049 282.8)
-
Step 300
300
#B8B9F9
oklch(80.8% 0.09 283.5)
-
Step 400
400
#9693F6
oklch(70.7% 0.143 283.5)
-
Step 500
500
#7E74F2
oklch(63% 0.183 283.4)
-
Step 600
600
#6A59E1
oklch(55.7% 0.199 283.5)
-
Step 700
700
#5948C3
oklch(49.2% 0.184 283.6)
-
Step 800
800
#483C9E
oklch(42.7% 0.153 283.4)
-
Step 900
900 (this color)
#3C357E
oklch(37.9% 0.119 283.5)
-
Step 950
950
#231F49
oklch(26.9% 0.075 284.4)
#3C357E 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) | #054280 | 0.060 |
| Deuteranopia (no green cones) | #003D7C | 0.060 |
| Tritanopia (no blue cones) | #234654 | 0.102 |
| Achromatopsia (no color) | #3F3F3F | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C357E
#3C357E
oklch(37.9% 0.119 283.5)
- #4A4300
#4A4300
oklch(37.8% 0.079 102.7)
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 #3C357E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.061
- Cobalt #1E488F ΔE 0.061
- Marine Blue #01386A ΔE 0.073
- Light Navy #155084 ΔE 0.080
- Sapphire #2138AB ΔE 0.082
- Prussian Blue #1D3557 ΔE 0.083
Use #3C357E 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.