#3C2B79
Closest named color: Dark Slate Blue (#483D8B). oklch(35.6% 0.127 288.3), rgb(60, 43, 121).
Aa
White text reads best on this color (11.57:1).
About this color
#3C2B79 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.127 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.058 away. White text reads best on it, at 11.57:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.81:1 |
| White text | 11.57:1 |
Values
| HEX | #3C2B79 |
| RGB | rgb(60, 43, 121) |
| HSL | hsl(253, 48%, 32%) |
| OKLCH | oklch(35.6% 0.127 288.3) |
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 #3C2B79 | 11.57:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #3C2B79 | 1.81:1 | Fails | Lc 7.6 | Not readable |
| #3C2B79 text on white | 11.57:1 | AAA | Lc 96.3 | Preferred for body text |
| #3C2B79 text on black | 1.81:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FC
oklch(93.5% 0.028 288)
-
Step 200
200
#D7D4FB
oklch(88.5% 0.053 288.8)
-
Step 300
300
#BDB7FB
oklch(80.9% 0.095 288.1)
-
Step 400
400
#9D8FF9
oklch(70.7% 0.152 287.9)
-
Step 500
500
#886EF6
oklch(63.1% 0.195 288.3)
-
Step 600
600
#7452E4
oklch(55.7% 0.21 288.3)
-
Step 700
700
#6241C7
oklch(49.2% 0.197 288.3)
-
Step 800
800
#4F37A1
oklch(42.8% 0.163 287.9)
-
Step 900
900 (this color)
#3C2B79
oklch(35.6% 0.127 288.3)
-
Step 950
950
#261E4B
oklch(27.1% 0.08 288)
#3C2B79 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) | #003B7B | 0.070 |
| Deuteranopia (no green cones) | #003777 | 0.068 |
| Tritanopia (no blue cones) | #273D4D | 0.104 |
| Achromatopsia (no color) | #393939 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C2B79
#3C2B79
oklch(35.6% 0.127 288.3)
- #403F00
#403F00
oklch(35.7% 0.077 108.7)
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 #3C2B79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.058
- Indigo #4B0082 ΔE 0.066
- Royal Purple #4B006E ΔE 0.074
- Blueberry #464196 ΔE 0.074
- Marine Blue #01386A ΔE 0.076
- Twilight Blue #0A437A ΔE 0.078
- Midnight Blue #191970 ΔE 0.079
- Prussian Blue #1D3557 ΔE 0.082
Use #3C2B79 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.