#33306A
Closest named color: Prussian Blue (#1D3557). oklch(34.5% 0.098 282.3), rgb(51, 48, 106).
Aa
White text reads best on this color (11.85:1).
About this color
#33306A is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.098 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.050 away. White text reads best on it, at 11.85:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.77:1 |
| White text | 11.85:1 |
Values
| HEX | #33306A |
| RGB | rgb(51, 48, 106) |
| HSL | hsl(243, 38%, 30%) |
| OKLCH | oklch(34.5% 0.098 282.3) |
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 #33306A | 11.85:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #33306A | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #33306A text on white | 11.85:1 | AAA | Lc 97.0 | Preferred for body text |
| #33306A text on black | 1.77:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D4D6F4
oklch(88.4% 0.041 282.5)
-
Step 300
300
#B9BBF0
oklch(80.9% 0.075 282.9)
-
Step 400
400
#9597E8
oklch(70.7% 0.118 281.9)
-
Step 500
500
#7D7BE1
oklch(63.1% 0.15 282.1)
-
Step 600
600
#6861CF
oklch(55.6% 0.165 282.5)
-
Step 700
700
#5750B3
oklch(49.2% 0.152 282.4)
-
Step 800
800
#474291
oklch(42.7% 0.126 282.5)
-
Step 900
900 (this color)
#33306A
oklch(34.5% 0.098 282.3)
-
Step 950
950
#222244
oklch(27.1% 0.062 281.4)
#33306A 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) | #13396C | 0.043 |
| Deuteranopia (no green cones) | #0F3569 | 0.044 |
| Tritanopia (no blue cones) | #1F3D48 | 0.084 |
| Achromatopsia (no color) | #373737 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33306A
#33306A
oklch(34.5% 0.098 282.3)
- #413A00
#413A00
oklch(34.5% 0.072 101.8)
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 #33306A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.050
- Marine Blue #01386A ΔE 0.052
- Marine #042E60 ΔE 0.059
- Twilight Blue #0A437A ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.072
- Space Cadet #2B2D42 ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.074
- Midnight Blue #191970 ΔE 0.076
Use #33306A 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.