#3C3363
Closest named color: Prussian Blue (#1D3557). oklch(35.5% 0.081 290.2), rgb(60, 51, 99).
Aa
White text reads best on this color (11.37:1).
About this color
#3C3363 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.081 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.052 away. White text reads best on it, at 11.37:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.84:1 |
| White text | 11.37:1 |
Values
| HEX | #3C3363 |
| RGB | rgb(60, 51, 99) |
| HSL | hsl(251, 32%, 29%) |
| OKLCH | oklch(35.5% 0.081 290.2) |
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 #3C3363 | 11.37:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #3C3363 | 1.84:1 | Fails | Lc 7.8 | Not readable |
| #3C3363 text on white | 11.37:1 | AAA | Lc 96.1 | Preferred for body text |
| #3C3363 text on black | 1.84:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EF
oklch(88.5% 0.034 289.4)
-
Step 300
300
#C0BAE6
oklch(80.8% 0.062 291.2)
-
Step 400
400
#A096D9
oklch(70.7% 0.097 290.5)
-
Step 500
500
#897BCF
oklch(63.1% 0.124 290)
-
Step 600
600
#7462BC
oklch(55.5% 0.136 290.5)
-
Step 700
700
#6151A2
oklch(49% 0.126 290)
-
Step 800
800
#4F4383
oklch(42.7% 0.103 289.9)
-
Step 900
900 (this color)
#3C3363
oklch(35.5% 0.081 290.2)
-
Step 950
950
#26223E
oklch(27.1% 0.051 289.1)
#3C3363 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) | #223B65 | 0.042 |
| Deuteranopia (no green cones) | #233962 | 0.040 |
| Tritanopia (no blue cones) | #323C46 | 0.067 |
| Achromatopsia (no color) | #3A3A3A | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C3363
#3C3363
oklch(35.5% 0.081 290.2)
- #3E3F00
#3E3F00
oklch(35.5% 0.078 110.8)
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 #3C3363, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.052
- Marine Blue #01386A ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.066
- Dark Grey Blue #29465B ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.067
- Gunmetal #293241 ΔE 0.070
- Twilight Blue #0A437A ΔE 0.071
- Onyx #343A40 ΔE 0.073
Use #3C3363 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.