#3C316E
Closest named color: Dark Slate Blue (#483D8B). oklch(35.9% 0.102 288.5), rgb(60, 49, 110).
Aa
White text reads best on this color (11.31:1).
About this color
#3C316E is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.102 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.060 away. White text reads best on it, at 11.31:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.85:1 |
| White text | 11.31:1 |
Values
| HEX | #3C316E |
| RGB | rgb(60, 49, 110) |
| HSL | hsl(251, 38%, 31%) |
| OKLCH | oklch(35.9% 0.102 288.5) |
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 #3C316E | 11.31:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #3C316E | 1.85:1 | Fails | Lc 8.0 | Not readable |
| #3C316E text on white | 11.31:1 | AAA | Lc 95.9 | Preferred for body text |
| #3C316E text on black | 1.85:1 | Fails | Lc 0.0 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D7D5F4
oklch(88.4% 0.042 288.5)
-
Step 300
300
#BEB9F0
oklch(80.9% 0.077 288.7)
-
Step 400
400
#9E93E8
oklch(70.7% 0.123 288.8)
-
Step 500
500
#8776E1
oklch(63% 0.157 288.4)
-
Step 600
600
#725CCF
oklch(55.5% 0.171 288.4)
-
Step 700
700
#604BB3
oklch(49% 0.158 288.5)
-
Step 800
800
#4E3E91
oklch(42.6% 0.131 288.4)
-
Step 900
900 (this color)
#3C316E
oklch(35.9% 0.102 288.5)
-
Step 950
950
#262044
oklch(27% 0.065 288.9)
#3C316E 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) | #153C70 | 0.055 |
| Deuteranopia (no green cones) | #15396D | 0.054 |
| Tritanopia (no blue cones) | #2D3E4A | 0.085 |
| Achromatopsia (no color) | #3A3A3A | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C316E
#3C316E
oklch(35.9% 0.102 288.5)
- #413F00
#413F00
oklch(35.8% 0.077 107.7)
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 #3C316E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.064
- Marine Blue #01386A ΔE 0.066
- Twilight Blue #0A437A ΔE 0.068
- Marine #042E60 ΔE 0.076
- Blueberry #464196 ΔE 0.078
- Dark Grey Blue #29465B ΔE 0.080
- Cobalt #1E488F ΔE 0.082
Use #3C316E 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.