#372663
Closest named color: Prussian Blue (#1D3557). oklch(32.4% 0.103 292.5), rgb(55, 38, 99).
Aa
White text reads best on this color (12.96:1).
About this color
#372663 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.103 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.062 away. White text reads best on it, at 12.96:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 12.96:1 |
Values
| HEX | #372663 |
| RGB | rgb(55, 38, 99) |
| HSL | hsl(257, 45%, 27%) |
| OKLCH | oklch(32.4% 0.103 292.5) |
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 #372663 | 12.96:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #372663 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #372663 text on white | 12.96:1 | AAA | Lc 98.9 | Preferred for body text |
| #372663 text on black | 1.61:1 | 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
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#D9D4F4
oklch(88.4% 0.044 292.6)
-
Step 300
300
#C1B8EF
oklch(80.9% 0.077 292.1)
-
Step 400
400
#A391E7
oklch(70.7% 0.124 292.5)
-
Step 500
500
#8E73E0
oklch(63% 0.16 292.6)
-
Step 600
600
#7959CD
oklch(55.5% 0.172 292.6)
-
Step 700
700
#6648B2
oklch(49% 0.161 292.5)
-
Step 800
800
#533C90
oklch(42.7% 0.133 292.5)
-
Step 900
900 (this color)
#372663
oklch(32.4% 0.103 292.5)
-
Step 950
950
#281F43
oklch(27% 0.065 293)
#372663 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) | #023265 | 0.067 |
| Deuteranopia (no green cones) | #073062 | 0.064 |
| Tritanopia (no blue cones) | #2B3340 | 0.083 |
| Achromatopsia (no color) | #313131 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #372663
#372663
oklch(32.4% 0.103 292.5)
- #353700
#353700
oklch(32.4% 0.072 112)
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 #372663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.062
- Marine #042E60 ΔE 0.066
- Midnight Blue #191970 ΔE 0.068
- Space Cadet #2B2D42 ΔE 0.070
- Royal Purple #4B006E ΔE 0.070
- Marine Blue #01386A ΔE 0.072
- Plum Purple #4E0550 ΔE 0.079
- Gunmetal #293241 ΔE 0.080
Use #372663 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.