#363371
Closest named color: Marine Blue (#01386A). oklch(35.9% 0.104 282), rgb(54, 51, 113).
Aa
White text reads best on this color (11.23:1).
About this color
#363371 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.104 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.056 away. White text reads best on it, at 11.23:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.86:1 |
| White text | 11.23:1 |
Values
| HEX | #363371 |
| RGB | rgb(54, 51, 113) |
| HSL | hsl(243, 38%, 32%) |
| OKLCH | oklch(35.9% 0.104 282) |
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 #363371 | 11.23:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #363371 | 1.86:1 | Fails | Lc 8.2 | Not readable |
| #363371 text on white | 11.23:1 | AAA | Lc 95.7 | Preferred for body text |
| #363371 text on black | 1.86:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F6
oklch(88.5% 0.044 282.6)
-
Step 300
300
#B8BBF2
oklch(80.9% 0.077 282.1)
-
Step 400
400
#9596EC
oklch(70.7% 0.125 282.2)
-
Step 500
500
#7C79E6
oklch(63% 0.16 282)
-
Step 600
600
#6760D4
oklch(55.7% 0.173 281.9)
-
Step 700
700
#564EB8
oklch(49.1% 0.162 282)
-
Step 800
800
#464195
oklch(42.8% 0.134 281.8)
-
Step 900
900 (this color)
#363371
oklch(35.9% 0.104 282)
-
Step 950
950
#222145
oklch(26.9% 0.066 282.3)
#363371 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) | #133D73 | 0.046 |
| Deuteranopia (no green cones) | #0E3970 | 0.047 |
| Tritanopia (no blue cones) | #20414D | 0.089 |
| Achromatopsia (no color) | #3B3B3B | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #363371
#363371
oklch(35.9% 0.104 282)
- #453E00
#453E00
oklch(36% 0.075 102.3)
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 #363371, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.056
- Twilight Blue #0A437A ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.060
- Marine #042E60 ΔE 0.070
- Cobalt #1E488F ΔE 0.073
- Blueberry #464196 ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.077
Use #363371 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.