#363673
Closest named color: Twilight Blue (#0A437A). oklch(36.7% 0.102 280.1), rgb(54, 54, 115).
Aa
White text reads best on this color (10.86:1).
About this color
#363673 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.102 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.052 away. White text reads best on it, at 10.86:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.93:1 |
| White text | 10.86:1 |
Values
| HEX | #363673 |
| RGB | rgb(54, 54, 115) |
| HSL | hsl(240, 36%, 33%) |
| OKLCH | oklch(36.7% 0.102 280.1) |
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 #363673 | 10.86:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #363673 | 1.93:1 | Fails | Lc 8.9 | Not readable |
| #363673 text on white | 10.86:1 | AAA | Lc 95.0 | Preferred for body text |
| #363673 text on black | 1.93:1 | Fails | Lc -7.6 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F6
oklch(88.6% 0.043 279.7)
-
Step 300
300
#B6BCF2
oklch(80.9% 0.076 279.6)
-
Step 400
400
#9297EB
oklch(70.6% 0.122 280.2)
-
Step 500
500
#797BE5
oklch(63.1% 0.156 280.1)
-
Step 600
600
#6361D3
oklch(55.5% 0.171 280.1)
-
Step 700
700
#5350B7
oklch(49.1% 0.158 280.1)
-
Step 800
800
#444294
oklch(42.7% 0.131 280.4)
-
Step 900
900 (this color)
#363673
oklch(36.7% 0.102 280.1)
-
Step 950
950
#212245
oklch(27.1% 0.064 280)
#363673 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) | #183F75 | 0.041 |
| Deuteranopia (no green cones) | #123B72 | 0.042 |
| Tritanopia (no blue cones) | #1E434F | 0.088 |
| Achromatopsia (no color) | #3D3D3D | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #363673
#363673
oklch(36.7% 0.102 280.1)
- #483F00
#483F00
oklch(36.6% 0.076 100.2)
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 #363673, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.054
- Marine Blue #01386A ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.062
- Cobalt #1E488F ΔE 0.066
- Blueberry #464196 ΔE 0.070
- Dark Grey Blue #29465B ΔE 0.072
- Marine #042E60 ΔE 0.073
Use #363673 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.