#513099
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.162 292.3), rgb(81, 48, 153).
Aa
White text reads best on this color (9.40:1).
About this color
#513099 is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.162 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 0.040 away. White text reads best on it, at 9.40:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #513099 |
| RGB | rgb(81, 48, 153) |
| HSL | hsl(259, 52%, 39%) |
| OKLCH | oklch(41.2% 0.162 292.3) |
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 #513099 | 9.40:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #513099 | 2.23:1 | Fails | Lc 12.8 | Not readable |
| #513099 text on white | 9.40:1 | AAA | Lc 91.2 | Preferred for body text |
| #513099 text on black | 2.23:1 | Fails | Lc -11.2 | 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
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#D9D3FA
oklch(88.4% 0.054 292.3)
-
Step 300
300
#C2B6F9
oklch(81% 0.094 292.4)
-
Step 400
400
#A48DF6
oklch(70.8% 0.151 292.2)
-
Step 500
500
#906CF2
oklch(63.2% 0.193 292.4)
-
Step 600
600
#7B4FE1
oklch(55.6% 0.21 292)
-
Step 700
700
#683EC3
oklch(49% 0.195 292.1)
-
Step 800
800 (this color)
#513099
oklch(41.2% 0.162 292.3)
-
Step 900
900
#452F7D
oklch(37.6% 0.126 292.2)
-
Step 950
950
#281D49
oklch(27% 0.079 291.8)
#513099 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) | #00489C | 0.094 |
| Deuteranopia (no green cones) | #004497 | 0.093 |
| Tritanopia (no blue cones) | #3B4A60 | 0.129 |
| Achromatopsia (no color) | #464646 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513099
#513099
oklch(41.2% 0.162 292.3)
- #4C4F00
#4C4F00
oklch(41.1% 0.091 112.3)
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 #513099, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Blueberry #464196 ΔE 0.041
- Rebecca Purple #663399 ΔE 0.042
- Chrysanthemum #560BAD ΔE 0.055
- Imperial Purple #480CA8 ΔE 0.058
- Indigo Blue #3A18B1 ΔE 0.071
- Sapphire #2138AB ΔE 0.077
- Blue With A Hint Of Purple #533CC6 ΔE 0.077
Use #513099 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.