#37285C
Closest named color: Prussian Blue (#1D3557). oklch(32.3% 0.09 294.1), rgb(55, 40, 92).
Aa
White text reads best on this color (12.95:1).
About this color
#37285C is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.090 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.054 away. White text reads best on it, at 12.95:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.62:1 |
| White text | 12.95:1 |
Values
| HEX | #37285C |
| RGB | rgb(55, 40, 92) |
| HSL | hsl(257, 39%, 26%) |
| OKLCH | oklch(32.3% 0.09 294.1) |
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 #37285C | 12.95:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #37285C | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #37285C text on white | 12.95:1 | AAA | Lc 99.0 | Preferred for body text |
| #37285C text on black | 1.62:1 | 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 950.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EAE6FD
oklch(93.5% 0.031 293.8)
-
Step 200
200
#DBD2FD
oklch(88.5% 0.059 294.8)
-
Step 300
300
#C4B3FF
oklch(80.8% 0.107 294.1)
-
Step 400
400
#A888FF
oklch(70.7% 0.17 294)
-
Step 500
500
#9564FD
oklch(63.2% 0.217 294)
-
Step 600
600
#8144EC
oklch(55.7% 0.236 293.9)
-
Step 700
700
#6E33CD
oklch(49.2% 0.219 294.2)
-
Step 800
800
#592CA6
oklch(42.7% 0.182 294.1)
-
Step 900
900
#492A83
oklch(37.7% 0.142 294.6)
-
Step 950
950 (this color)
#37285C
oklch(32.3% 0.09 294.1)
#37285C 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) | #12325E | 0.056 |
| Deuteranopia (no green cones) | #16305B | 0.052 |
| Tritanopia (no blue cones) | #2E333D | 0.074 |
| Achromatopsia (no color) | #313131 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37285C
#37285C
oklch(32.3% 0.09 294.1)
- #333700
#333700
oklch(32.2% 0.072 114.2)
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 #37285C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.057
- Marine #042E60 ΔE 0.064
- Gunmetal #293241 ΔE 0.067
- Marine Blue #01386A ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.076
- Midnight Blue #191970 ΔE 0.077
- Plum Purple #4E0550 ΔE 0.078
Use #37285C 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.