#33255B
Closest named color: Prussian Blue (#1D3557). oklch(31.2% 0.093 292.1), rgb(51, 37, 91).
Aa
White text reads best on this color (13.49:1).
About this color
#33255B is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.093 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.056 away. White text reads best on it, at 13.49:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.55:1 |
| White text | 13.49:1 |
Values
| HEX | #33255B |
| RGB | rgb(51, 37, 91) |
| HSL | hsl(256, 42%, 25%) |
| OKLCH | oklch(31.2% 0.093 292.1) |
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 #33255B | 13.49:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #33255B | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #33255B text on white | 13.49:1 | AAA | Lc 99.8 | Preferred for body text |
| #33255B text on black | 1.55:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#EAE6FE
oklch(93.5% 0.032 293.4)
-
Step 200
200
#D9D3FF
oklch(88.6% 0.06 291.4)
-
Step 300
300
#C2B4FF
oklch(80.9% 0.105 292.4)
-
Step 400
400
#A48AFF
oklch(70.7% 0.167 291.8)
-
Step 500
500
#9165FF
oklch(63.1% 0.218 292.1)
-
Step 600
600
#7E42F2
oklch(55.6% 0.244 292.1)
-
Step 700
700
#6B31D3
oklch(49.2% 0.227 292.1)
-
Step 800
800
#572BAA
oklch(42.7% 0.188 292.3)
-
Step 900
900
#472A87
oklch(37.8% 0.147 292.2)
-
Step 950
950 (this color)
#33255B
oklch(31.2% 0.093 292.1)
#33255B 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) | #0A2F5D | 0.057 |
| Deuteranopia (no green cones) | #0E2D5A | 0.054 |
| Tritanopia (no blue cones) | #28303C | 0.074 |
| Achromatopsia (no color) | #2E2E2E | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33255B
#33255B
oklch(31.2% 0.093 292.1)
- #323400
#323400
oklch(31.3% 0.069 112.1)
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 #33255B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.057
- Marine #042E60 ΔE 0.060
- Midnight Blue #191970 ΔE 0.068
- Gunmetal #293241 ΔE 0.069
- Marine Blue #01386A ΔE 0.072
- Oxford Blue #1B263B ΔE 0.073
- Deep Violet #490648 ΔE 0.078
Use #33255B 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.