#372963
Closest named color: Prussian Blue (#1D3557). oklch(33% 0.098 291.2), rgb(55, 41, 99).
Aa
White text reads best on this color (12.65:1).
About this color
#372963 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.098 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.057 away. White text reads best on it, at 12.65:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.65:1 |
| White text | 12.65:1 |
Values
| HEX | #372963 |
| RGB | rgb(55, 41, 99) |
| HSL | hsl(254, 41%, 27%) |
| OKLCH | oklch(33% 0.098 291.2) |
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 #372963 | 12.65:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #372963 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #372963 text on white | 12.65:1 | AAA | Lc 98.5 | Preferred for body text |
| #372963 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C0B9ED
oklch(80.9% 0.073 290.8)
-
Step 400
400
#A193E4
oklch(70.7% 0.117 291)
-
Step 500
500
#8B76DD
oklch(63.1% 0.151 290.8)
-
Step 600
600
#765CCA
oklch(55.5% 0.164 291)
-
Step 700
700
#644BAF
oklch(49.1% 0.153 291.3)
-
Step 800
800
#513E8E
oklch(42.7% 0.127 291)
-
Step 900
900 (this color)
#372963
oklch(33% 0.098 291.2)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#372963 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) | #0C3465 | 0.059 |
| Deuteranopia (no green cones) | #0F3262 | 0.057 |
| Tritanopia (no blue cones) | #2B3541 | 0.080 |
| Achromatopsia (no color) | #333333 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #372963
#372963
oklch(33% 0.098 291.2)
- #373800
#373800
oklch(32.9% 0.072 110.9)
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 #372963, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.057
- Marine #042E60 ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.067
- Marine Blue #01386A ΔE 0.067
- Midnight Blue #191970 ΔE 0.072
- Gunmetal #293241 ΔE 0.076
- Royal Purple #4B006E ΔE 0.076
- Dark Blue Grey #1F3B4D ΔE 0.080
Use #372963 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.