#51339F
Closest named color: Blueberry (#464196). oklch(42.2% 0.165 290.3), rgb(81, 51, 159).
Aa
White text reads best on this color (9.03:1).
About this color
#51339F is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.165 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.038 away. White text reads best on it, at 9.03:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Blueberry (#464196) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #51339F |
| RGB | rgb(81, 51, 159) |
| HSL | hsl(257, 51%, 41%) |
| OKLCH | oklch(42.2% 0.165 290.3) |
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 #51339F | 9.03:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #51339F | 2.32:1 | Fails | Lc 13.8 | Not readable |
| #51339F text on white | 9.03:1 | AAA | Lc 90.2 | Preferred for body text |
| #51339F text on black | 2.32:1 | Fails | Lc -12.1 | 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 800.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D8D4FB
oklch(88.5% 0.053 290)
-
Step 300
300
#C0B6FB
oklch(80.9% 0.097 290.7)
-
Step 400
400
#A18DF9
oklch(70.7% 0.155 290.4)
-
Step 500
500
#8C6CF6
oklch(63.1% 0.198 290.2)
-
Step 600
600
#784FE5
oklch(55.7% 0.215 290.2)
-
Step 700
700
#653EC7
oklch(49.1% 0.2 290.1)
-
Step 800
800 (this color)
#51339F
oklch(42.2% 0.165 290.3)
-
Step 900
900
#433080
oklch(37.8% 0.129 289.7)
-
Step 950
950
#271D4B
oklch(27% 0.082 289.8)
#51339F 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) | #004BA2 | 0.091 |
| Deuteranopia (no green cones) | #00469D | 0.089 |
| Tritanopia (no blue cones) | #374E64 | 0.135 |
| Achromatopsia (no color) | #494949 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51339F
#51339F
oklch(42.2% 0.165 290.3)
- #515100
#515100
oklch(42.1% 0.092 109.8)
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 #51339F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.038
- Rebecca Purple #663399 ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.043
- Chrysanthemum #560BAD ΔE 0.055
- Imperial Purple #480CA8 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.066
- Indigo Blue #3A18B1 ΔE 0.070
- Sapphire #2138AB ΔE 0.072
Use #51339F 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.