#33315F
Closest named color: Prussian Blue (#1D3557). oklch(34% 0.079 283.3), rgb(51, 49, 95).
Aa
White text reads best on this color (12.03:1).
About this color
#33315F is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.079 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.037 away. White text reads best on it, at 12.03:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.74:1 |
| White text | 12.03:1 |
Values
| HEX | #33315F |
| RGB | rgb(51, 49, 95) |
| HSL | hsl(243, 32%, 28%) |
| OKLCH | oklch(34% 0.079 283.3) |
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 #33315F | 12.03:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #33315F | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #33315F text on white | 12.03:1 | AAA | Lc 97.4 | Preferred for body text |
| #33315F text on black | 1.74:1 | 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
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D6D7EF
oklch(88.6% 0.033 283.8)
-
Step 300
300
#BBBCE7
oklch(80.9% 0.06 283.9)
-
Step 400
400
#9899DA
oklch(70.7% 0.094 283)
-
Step 500
500
#807ED0
oklch(63% 0.122 283.4)
-
Step 600
600
#6A66BD
oklch(55.5% 0.132 283.3)
-
Step 700
700
#5955A3
oklch(49.2% 0.122 283.3)
-
Step 800
800
#484684
oklch(42.7% 0.101 282.7)
-
Step 900
900 (this color)
#33315F
oklch(34% 0.079 283.3)
-
Step 950
950
#23233E
oklch(27% 0.05 282.6)
#33315F 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) | #1F3861 | 0.032 |
| Deuteranopia (no green cones) | #1D355E | 0.032 |
| Tritanopia (no blue cones) | #253A43 | 0.067 |
| Achromatopsia (no color) | #363636 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33315F
#33315F
oklch(34% 0.079 283.3)
- #3F3900
#3F3900
oklch(34% 0.071 102.9)
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 #33315F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.037
- Marine Blue #01386A ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.057
- Marine #042E60 ΔE 0.057
- Gunmetal #293241 ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.068
- Onyx #343A40 ΔE 0.069
Use #33315F 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.