#613A8E
Closest named color: Rebecca Purple (#663399). oklch(43.7% 0.135 302.6), rgb(97, 58, 142).
Aa
White text reads best on this color (8.38:1).
About this color
#613A8E is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.135 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 0.025 away. White text reads best on it, at 8.38:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #613A8E |
| RGB | rgb(97, 58, 142) |
| HSL | hsl(268, 42%, 39%) |
| OKLCH | oklch(43.7% 0.135 302.6) |
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 #613A8E | 8.38:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #613A8E | 2.50:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #613A8E text on white | 8.38:1 | AAA | Lc 88.6 | Fine for body text |
| #613A8E text on black | 2.50:1 | Fails | Lc -13.6 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE7F7
oklch(93.7% 0.022 302.9)
-
Step 200
200
#DED3F2
oklch(88.5% 0.044 301.7)
-
Step 300
300
#CAB5EC
oklch(80.9% 0.079 302.1)
-
Step 400
400
#B08CE2
oklch(70.7% 0.128 302.5)
-
Step 500
500
#9D6DD9
oklch(63% 0.162 302.5)
-
Step 600
600
#8852C6
oklch(55.5% 0.176 302.5)
-
Step 700
700
#7442AC
oklch(49.2% 0.164 302.5)
-
Step 800
800 (this color)
#613A8E
oklch(43.7% 0.135 302.6)
-
Step 900
900
#4D316F
oklch(37.8% 0.105 302.5)
-
Step 950
950
#2D1D41
oklch(27% 0.067 302.7)
#613A8E 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) | #154D91 | 0.105 |
| Deuteranopia (no green cones) | #254D8C | 0.095 |
| Tritanopia (no blue cones) | #584B5E | 0.102 |
| Achromatopsia (no color) | #4E4E4E | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613A8E
#613A8E
oklch(43.7% 0.135 302.6)
- #475A00
#475A00
oklch(43.6% 0.107 122.7)
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 #613A8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.025
- Dark Slate Blue #483D8B ΔE 0.045
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.065
- Dusk #4E5481 ΔE 0.079
- Light Eggplant #894585 ΔE 0.087
- Chrysanthemum #560BAD ΔE 0.090
- Bluey Purple #6241C7 ΔE 0.092
Use #613A8E 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.