#372969
Closest named color: Prussian Blue (#1D3557). oklch(33.5% 0.107 289.4), rgb(55, 41, 105).
Aa
White text reads best on this color (12.47:1).
About this color
#372969 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.107 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.062 away. White text reads best on it, at 12.47:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.68:1 |
| White text | 12.47:1 |
Values
| HEX | #372969 |
| RGB | rgb(55, 41, 105) |
| HSL | hsl(253, 44%, 29%) |
| OKLCH | oklch(33.5% 0.107 289.4) |
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 #372969 | 12.47:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #372969 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #372969 text on white | 12.47:1 | AAA | Lc 98.1 | Preferred for body text |
| #372969 text on black | 1.68:1 | 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
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#BFB9F2
oklch(81% 0.08 289.3)
-
Step 400
400
#9F92EB
oklch(70.7% 0.128 289.4)
-
Step 500
500
#8974E5
oklch(63.1% 0.165 289.4)
-
Step 600
600
#745AD3
oklch(55.6% 0.178 289.2)
-
Step 700
700
#6249B7
oklch(49.2% 0.166 289.3)
-
Step 800
800
#503C94
oklch(42.7% 0.139 289.7)
-
Step 900
900 (this color)
#372969
oklch(33.5% 0.107 289.4)
-
Step 950
950
#261F45
oklch(26.9% 0.069 289.4)
#372969 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) | #01356B | 0.064 |
| Deuteranopia (no green cones) | #033268 | 0.062 |
| Tritanopia (no blue cones) | #283744 | 0.088 |
| Achromatopsia (no color) | #343434 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #372969
#372969
oklch(33.5% 0.107 289.4)
- #3A3900
#3A3900
oklch(33.5% 0.072 108.7)
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 #372969, 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
- Marine Blue #01386A ΔE 0.067
- Midnight Blue #191970 ΔE 0.069
- Royal Purple #4B006E ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.076
- Indigo #4B0082 ΔE 0.078
- Dark Slate Blue #483D8B ΔE 0.082
Use #372969 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.