#372A5E
Closest named color: Prussian Blue (#1D3557). oklch(32.8% 0.089 292.3), rgb(55, 42, 94).
Aa
White text reads best on this color (12.68:1).
About this color
#372A5E is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.089 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.051 away. White text reads best on it, at 12.68:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.65:1 |
| White text | 12.68:1 |
Values
| HEX | #372A5E |
| RGB | rgb(55, 42, 94) |
| HSL | hsl(255, 38%, 27%) |
| OKLCH | oklch(32.8% 0.089 292.3) |
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 #372A5E | 12.68:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #372A5E | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #372A5E text on white | 12.68:1 | AAA | Lc 98.6 | Preferred for body text |
| #372A5E text on black | 1.65:1 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#D9D5F0
oklch(88.4% 0.037 292.4)
-
Step 300
300
#C1B9E9
oklch(80.8% 0.068 292.5)
-
Step 400
400
#A294DE
oklch(70.7% 0.107 292.1)
-
Step 500
500
#8C78D4
oklch(63.1% 0.136 292)
-
Step 600
600
#775FC2
oklch(55.6% 0.149 292)
-
Step 700
700
#644EA7
oklch(49.1% 0.138 291.9)
-
Step 800
800
#524087
oklch(42.7% 0.114 292.6)
-
Step 900
900 (this color)
#372A5E
oklch(32.8% 0.089 292.3)
-
Step 950
950
#27213F
oklch(27% 0.055 291.5)
#372A5E 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) | #153360 | 0.052 |
| Deuteranopia (no green cones) | #17325D | 0.050 |
| Tritanopia (no blue cones) | #2D353F | 0.074 |
| Achromatopsia (no color) | #333333 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #372A5E
#372A5E
oklch(32.8% 0.089 292.3)
- #363800
#363800
oklch(32.8% 0.073 112)
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 #372A5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.058
- Marine #042E60 ΔE 0.063
- Gunmetal #293241 ΔE 0.067
- Marine Blue #01386A ΔE 0.067
- Dark Blue Grey #1F3B4D ΔE 0.073
- Midnight Blue #191970 ΔE 0.078
- Oxford Blue #1B263B ΔE 0.082
Use #372A5E 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.