#37255C
Closest named color: Prussian Blue (#1D3557). oklch(31.7% 0.095 295.6), rgb(55, 37, 92).
Aa
White text reads best on this color (13.27:1).
About this color
#37255C is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.095 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.060 away. White text reads best on it, at 13.27:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.58:1 |
| White text | 13.27:1 |
Values
| HEX | #37255C |
| RGB | rgb(55, 37, 92) |
| HSL | hsl(260, 43%, 25%) |
| OKLCH | oklch(31.7% 0.095 295.6) |
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 #37255C | 13.27:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #37255C | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #37255C text on white | 13.27:1 | AAA | Lc 99.4 | Preferred for body text |
| #37255C text on black | 1.58:1 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FE
oklch(93.6% 0.033 295.3)
-
Step 200
200
#DCD2FF
oklch(88.6% 0.062 295.3)
-
Step 300
300
#C6B2FF
oklch(80.8% 0.109 295.8)
-
Step 400
400
#AB86FF
oklch(70.7% 0.173 295.7)
-
Step 500
500
#9960FF
oklch(63.1% 0.225 295.8)
-
Step 600
600
#853CF1
oklch(55.6% 0.249 295.3)
-
Step 700
700
#722BD1
oklch(49.1% 0.231 295.9)
-
Step 800
800
#5C27A9
oklch(42.7% 0.191 295.6)
-
Step 900
900
#4B2786
oklch(37.7% 0.15 295.7)
-
Step 950
950 (this color)
#37255C
oklch(31.7% 0.095 295.6)
#37255C 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) | #0B305E | 0.063 |
| Deuteranopia (no green cones) | #112F5B | 0.059 |
| Tritanopia (no blue cones) | #2E303C | 0.075 |
| Achromatopsia (no color) | #303030 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37255C
#37255C
oklch(31.7% 0.095 295.6)
- #313600
#313600
oklch(31.7% 0.072 115.3)
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 #37255C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.060
- Marine #042E60 ΔE 0.066
- Gunmetal #293241 ΔE 0.072
- Midnight Blue #191970 ΔE 0.073
- Plum Purple #4E0550 ΔE 0.073
- Royal Purple #4B006E ΔE 0.074
- Deep Violet #490648 ΔE 0.074
Use #37255C 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.