#513597
Closest named color: Dark Slate Blue (#483D8B). oklch(41.8% 0.152 291.6), rgb(81, 53, 151).
Aa
White text reads best on this color (9.10:1).
About this color
#513597 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.152 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.031 away. White text reads best on it, at 9.10:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #513597 |
| RGB | rgb(81, 53, 151) |
| HSL | hsl(257, 48%, 40%) |
| OKLCH | oklch(41.8% 0.152 291.6) |
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 #513597 | 9.10:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #513597 | 2.30:1 | Fails | Lc 13.5 | Not readable |
| #513597 text on white | 9.10:1 | AAA | Lc 90.5 | Preferred for body text |
| #513597 text on black | 2.30:1 | Fails | Lc -11.8 | 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
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C1B7F6
oklch(81% 0.088 291.6)
-
Step 400
400
#A28FF2
oklch(70.8% 0.142 291.1)
-
Step 500
500
#8E6FED
oklch(63.2% 0.182 291.7)
-
Step 600
600
#7953DB
oklch(55.6% 0.198 291.5)
-
Step 700
700
#6642BE
oklch(49% 0.184 291.5)
-
Step 800
800 (this color)
#513597
oklch(41.8% 0.152 291.6)
-
Step 900
900
#44317A
oklch(37.6% 0.119 291.6)
-
Step 950
950
#281E48
oklch(27.1% 0.075 291.5)
#513597 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) | #004A9A | 0.090 |
| Deuteranopia (no green cones) | #004695 | 0.089 |
| Tritanopia (no blue cones) | #3C4C61 | 0.122 |
| Achromatopsia (no color) | #484848 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513597
#513597
oklch(41.8% 0.152 291.6)
- #4F5100
#4F5100
oklch(41.9% 0.092 111.4)
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 #513597, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.032
- Rebecca Purple #663399 ΔE 0.040
- Chrysanthemum #560BAD ΔE 0.065
- Imperial Purple #480CA8 ΔE 0.068
- Twilight #4E518B ΔE 0.076
- Sapphire #2138AB ΔE 0.077
- Blue With A Hint Of Purple #533CC6 ΔE 0.077
Use #513597 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.