#372E60
Closest named color: Prussian Blue (#1D3557). oklch(33.8% 0.085 289.3), rgb(55, 46, 96).
Aa
White text reads best on this color (12.19:1).
About this color
#372E60 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.085 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.047 away. White text reads best on it, at 12.19:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.72:1 |
| White text | 12.19:1 |
Values
| HEX | #372E60 |
| RGB | rgb(55, 46, 96) |
| HSL | hsl(251, 35%, 28%) |
| OKLCH | oklch(33.8% 0.085 289.3) |
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 #372E60 | 12.19:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #372E60 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #372E60 text on white | 12.19:1 | AAA | Lc 97.7 | Preferred for body text |
| #372E60 text on black | 1.72:1 | 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
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F0
oklch(88.6% 0.036 289.2)
-
Step 300
300
#BFBAE8
oklch(80.8% 0.065 289.9)
-
Step 400
400
#9F96DD
oklch(70.8% 0.103 289.3)
-
Step 500
500
#887AD3
oklch(63% 0.131 289.3)
-
Step 600
600
#7362C0
oklch(55.7% 0.142 289.3)
-
Step 700
700
#6050A6
oklch(49% 0.133 289.1)
-
Step 800
800
#4F4286
oklch(42.7% 0.109 289.7)
-
Step 900
900 (this color)
#372E60
oklch(33.8% 0.085 289.3)
-
Step 950
950
#26213F
oklch(26.9% 0.055 289.9)
#372E60 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) | #1A3662 | 0.044 |
| Deuteranopia (no green cones) | #1B345F | 0.043 |
| Tritanopia (no blue cones) | #2C3842 | 0.071 |
| Achromatopsia (no color) | #353535 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #372E60
#372E60
oklch(33.8% 0.085 289.3)
- #3A3A00
#3A3A00
oklch(33.7% 0.074 109.8)
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 #372E60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.058
- Marine Blue #01386A ΔE 0.061
- Marine #042E60 ΔE 0.062
- Gunmetal #293241 ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.067
- Onyx #343A40 ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.077
Use #372E60 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.