#3C3575
Closest named color: Dark Slate Blue (#483D8B). oklch(37.2% 0.106 285), rgb(60, 53, 117).
Aa
White text reads best on this color (10.72:1).
About this color
#3C3575 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.106 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.047 away. White text reads best on it, at 10.72:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.95:1 |
| White text | 10.72:1 |
Values
| HEX | #3C3575 |
| RGB | rgb(60, 53, 117) |
| HSL | hsl(247, 38%, 33%) |
| OKLCH | oklch(37.2% 0.106 285) |
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 #3C3575 | 10.72:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #3C3575 | 1.95:1 | Fails | Lc 9.3 | Not readable |
| #3C3575 text on white | 10.72:1 | AAA | Lc 94.7 | Preferred for body text |
| #3C3575 text on black | 1.95:1 | Fails | Lc -7.9 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D5D6F6
oklch(88.5% 0.044 284)
-
Step 300
300
#BBBAF3
oklch(81% 0.08 285.3)
-
Step 400
400
#9994EC
oklch(70.7% 0.127 285.3)
-
Step 500
500
#8177E6
oklch(63% 0.162 284.8)
-
Step 600
600
#6C5DD4
oklch(55.5% 0.176 284.8)
-
Step 700
700
#5B4CB8
oklch(49.1% 0.164 285)
-
Step 800
800
#4A3F95
oklch(42.7% 0.136 284.9)
-
Step 900
900 (this color)
#3C3575
oklch(37.2% 0.106 285)
-
Step 950
950
#242045
oklch(26.9% 0.067 285.9)
#3C3575 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) | #164077 | 0.052 |
| Deuteranopia (no green cones) | #133C74 | 0.052 |
| Tritanopia (no blue cones) | #29434F | 0.091 |
| Achromatopsia (no color) | #3E3E3E | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C3575
#3C3575
oklch(37.2% 0.106 285)
- #474200
#474200
oklch(37.2% 0.079 104.7)
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 #3C3575, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.047
- Twilight Blue #0A437A ΔE 0.060
- Blueberry #464196 ΔE 0.064
- Marine Blue #01386A ΔE 0.067
- Cobalt #1E488F ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.078
- Light Navy #155084 ΔE 0.081
Use #3C3575 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.