#33316C
Closest named color: Marine Blue (#01386A). oklch(34.9% 0.1 281.4), rgb(51, 49, 108).
Aa
White text reads best on this color (11.68:1).
About this color
#33316C is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.100 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.051 away. White text reads best on it, at 11.68:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.79:1 |
| White text | 11.68:1 |
Values
| HEX | #33316C |
| RGB | rgb(51, 49, 108) |
| HSL | hsl(242, 38%, 31%) |
| OKLCH | oklch(34.9% 0.1 281.4) |
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 #33316C | 11.68:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #33316C | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #33316C text on white | 11.68:1 | AAA | Lc 96.7 | Preferred for body text |
| #33316C text on black | 1.79:1 | 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
#D4D7F5
oklch(88.6% 0.041 281)
-
Step 300
300
#B8BCF0
oklch(81% 0.073 281.2)
-
Step 400
400
#9497E9
oklch(70.7% 0.119 281.3)
-
Step 500
500
#7C7BE3
oklch(63.2% 0.153 281.5)
-
Step 600
600
#6661D0
oklch(55.5% 0.166 281.5)
-
Step 700
700
#5550B4
oklch(49.1% 0.154 281.4)
-
Step 800
800
#454292
oklch(42.7% 0.128 281.2)
-
Step 900
900 (this color)
#33316C
oklch(34.9% 0.1 281.4)
-
Step 950
950
#222244
oklch(27.1% 0.062 281.4)
#33316C 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) | #133A6E | 0.042 |
| Deuteranopia (no green cones) | #0E366B | 0.044 |
| Tritanopia (no blue cones) | #1D3E49 | 0.086 |
| Achromatopsia (no color) | #383838 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33316C
#33316C
oklch(34.9% 0.1 281.4)
- #423B00
#423B00
oklch(34.9% 0.073 102)
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 #33316C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.052
- Marine #042E60 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.074
- Space Cadet #2B2D42 ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.076
Use #33316C 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.