#613A8C
Closest named color: Rebecca Purple (#663399). oklch(43.6% 0.133 303.3), rgb(97, 58, 140).
Aa
White text reads best on this color (8.42:1).
About this color
#613A8C is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.133 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.028 away. White text reads best on it, at 8.42:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.49:1 |
| White text | 8.42:1 |
Values
| HEX | #613A8C |
| RGB | rgb(97, 58, 140) |
| HSL | hsl(269, 41%, 39%) |
| OKLCH | oklch(43.6% 0.133 303.3) |
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 #613A8C | 8.42:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #613A8C | 2.49:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #613A8C text on white | 8.42:1 | AAA | Lc 88.7 | Fine for body text |
| #613A8C text on black | 2.49:1 | Fails | Lc -13.5 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F7
oklch(93.7% 0.022 302.9)
-
Step 200
200
#DFD3F1
oklch(88.6% 0.043 303.7)
-
Step 300
300
#CBB5EA
oklch(80.9% 0.077 303.6)
-
Step 400
400
#B18CE0
oklch(70.7% 0.125 303.6)
-
Step 500
500
#9E6ED7
oklch(63.2% 0.158 303.3)
-
Step 600
600
#8953C4
oklch(55.6% 0.172 303.3)
-
Step 700
700
#7443AA
oklch(49.2% 0.16 302.9)
-
Step 800
800 (this color)
#613A8C
oklch(43.6% 0.133 303.3)
-
Step 900
900
#4D316E
oklch(37.7% 0.104 303)
-
Step 950
950
#2D1D40
oklch(26.9% 0.065 303.4)
#613A8C 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) | #184C8F | 0.103 |
| Deuteranopia (no green cones) | #274D8A | 0.094 |
| Tritanopia (no blue cones) | #594A5D | 0.099 |
| Achromatopsia (no color) | #4D4D4D | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613A8C
#613A8C
oklch(43.6% 0.133 303.3)
- #465A00
#465A00
oklch(43.5% 0.107 123.3)
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 #613A8C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.028
- Dark Slate Blue #483D8B ΔE 0.045
- Blueberry #464196 ΔE 0.051
- Twilight #4E518B ΔE 0.065
- Dusk #4E5481 ΔE 0.078
- Light Eggplant #894585 ΔE 0.086
- Chrysanthemum #560BAD ΔE 0.092
- Purple #800080 ΔE 0.093
Use #613A8C 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.