#613699
Closest named color: Rebecca Purple (#663399). oklch(43.9% 0.155 300), rgb(97, 54, 153).
Aa
White text reads best on this color (8.41:1).
About this color
#613699 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.155 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.011 away. White text reads best on it, at 8.41:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.49:1 |
| White text | 8.41:1 |
Values
| HEX | #613699 |
| RGB | rgb(97, 54, 153) |
| HSL | hsl(266, 48%, 41%) |
| OKLCH | oklch(43.9% 0.155 300) |
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 #613699 | 8.41:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #613699 | 2.49:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #613699 text on white | 8.41:1 | AAA | Lc 88.5 | Fine for body text |
| #613699 text on black | 2.49:1 | Fails | Lc -13.7 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6F9
oklch(93.5% 0.026 300.3)
-
Step 200
200
#DED2F6
oklch(88.5% 0.051 300.6)
-
Step 300
300
#C9B4F3
oklch(80.9% 0.09 299.7)
-
Step 400
400
#AF8AED
oklch(70.8% 0.145 299.9)
-
Step 500
500
#9C69E7
oklch(63.1% 0.185 299.8)
-
Step 600
600
#884CD5
oklch(55.7% 0.201 300)
-
Step 700
700
#733CB8
oklch(49.1% 0.186 299.9)
-
Step 800
800 (this color)
#613699
oklch(43.9% 0.155 300)
-
Step 900
900
#4C2E77
oklch(37.7% 0.12 299.5)
-
Step 950
950
#2D1C46
oklch(27.1% 0.076 300)
#613699 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) | #004D9C | 0.114 |
| Deuteranopia (no green cones) | #0A4D97 | 0.112 |
| Tritanopia (no blue cones) | #554C62 | 0.118 |
| Achromatopsia (no color) | #4D4D4D | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613699
#613699
oklch(43.9% 0.155 300)
- #4B5A00
#4B5A00
oklch(43.9% 0.104 120.2)
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 #613699, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.011
- Blueberry #464196 ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.051
- Chrysanthemum #560BAD ΔE 0.072
- Grape #7209B7 ΔE 0.075
- Bluey Purple #6241C7 ΔE 0.077
- Twilight #4E518B ΔE 0.078
- Blue With A Hint Of Purple #533CC6 ΔE 0.078
Use #613699 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.