#373466
Closest named color: Prussian Blue (#1D3557). oklch(35.5% 0.085 283.9), rgb(55, 52, 102).
Aa
White text reads best on this color (11.37:1).
About this color
#373466 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.085 and its hue 284°. 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 11.37:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.84:1 |
| White text | 11.37:1 |
Values
| HEX | #373466 |
| RGB | rgb(55, 52, 102) |
| HSL | hsl(244, 32%, 30%) |
| OKLCH | oklch(35.5% 0.085 283.9) |
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 #373466 | 11.37:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #373466 | 1.84:1 | Fails | Lc 7.8 | Not readable |
| #373466 text on white | 11.37:1 | AAA | Lc 96.1 | Preferred for body text |
| #373466 text on black | 1.84:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D7F0
oklch(88.6% 0.034 283.9)
-
Step 300
300
#BBBCE9
oklch(81% 0.063 283.9)
-
Step 400
400
#9998DE
oklch(70.8% 0.102 284.1)
-
Step 500
500
#817DD5
oklch(63.2% 0.13 284.1)
-
Step 600
600
#6B64C2
oklch(55.5% 0.142 284.1)
-
Step 700
700
#5953A8
oklch(49.1% 0.132 283.6)
-
Step 800
800
#494488
oklch(42.7% 0.11 284.1)
-
Step 900
900 (this color)
#373466
oklch(35.5% 0.085 283.9)
-
Step 950
950
#232240
oklch(26.9% 0.055 283.6)
#373466 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) | #203C68 | 0.036 |
| Deuteranopia (no green cones) | #1E3865 | 0.036 |
| Tritanopia (no blue cones) | #283E48 | 0.072 |
| Achromatopsia (no color) | #3A3A3A | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #373466
#373466
oklch(35.5% 0.085 283.9)
- #423D00
#423D00
oklch(35.4% 0.075 104.4)
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 #373466, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.047
- Marine Blue #01386A ΔE 0.055
- Twilight Blue #0A437A ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.064
- Marine #042E60 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.068
- Gunmetal #293241 ΔE 0.071
Use #373466 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.