#513B9A
Closest named color: Blueberry (#464196). oklch(43.1% 0.148 289.3), rgb(81, 59, 154).
Aa
White text reads best on this color (8.59:1).
About this color
#513B9A is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.148 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.023 away. White text reads best on it, at 8.59:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.44:1 |
| White text | 8.59:1 |
Values
| HEX | #513B9A |
| RGB | rgb(81, 59, 154) |
| HSL | hsl(254, 45%, 42%) |
| OKLCH | oklch(43.1% 0.148 289.3) |
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 #513B9A | 8.59:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #513B9A | 2.44:1 | Fails | Lc 14.8 | Not readable |
| #513B9A text on white | 8.59:1 | AAA | Lc 89.2 | Fine for body text |
| #513B9A text on black | 2.44:1 | Fails | Lc -13.1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D8D5F8
oklch(88.6% 0.048 289.3)
-
Step 300
300
#BFB8F5
oklch(81% 0.086 289.6)
-
Step 400
400
#9F90F1
oklch(70.6% 0.139 289.4)
-
Step 500
500
#8972EC
oklch(63.2% 0.177 289)
-
Step 600
600
#7556DA
oklch(55.6% 0.193 289.4)
-
Step 700
700
#6245BD
oklch(49% 0.179 289.2)
-
Step 800
800 (this color)
#513B9A
oklch(43.1% 0.148 289.3)
-
Step 900
900
#42337A
oklch(37.7% 0.116 289.4)
-
Step 950
950
#261F47
oklch(27% 0.072 288.7)
#513B9A 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) | #004E9D | 0.085 |
| Deuteranopia (no green cones) | #004A98 | 0.084 |
| Tritanopia (no blue cones) | #3A5165 | 0.121 |
| Achromatopsia (no color) | #4C4C4C | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513B9A
#513B9A
oklch(43.1% 0.148 289.3)
- #545400
#545400
oklch(43.2% 0.094 109.8)
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 #513B9A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.023
- Dark Slate Blue #483D8B ΔE 0.029
- Rebecca Purple #663399 ΔE 0.041
- Twilight #4E518B ΔE 0.065
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Cobalt #1E488F ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.074
- Sapphire #2138AB ΔE 0.075
Use #513B9A 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.