#613188
Closest named color: Rebecca Purple (#663399). oklch(41.9% 0.142 306.7), rgb(97, 49, 136).
Aa
White text reads best on this color (9.11:1).
About this color
#613188 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.142 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.029 away. White text reads best on it, at 9.11:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.30:1 |
| White text | 9.11:1 |
Values
| HEX | #613188 |
| RGB | rgb(97, 49, 136) |
| HSL | hsl(273, 47%, 36%) |
| OKLCH | oklch(41.9% 0.142 306.7) |
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 #613188 | 9.11:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #613188 | 2.30:1 | Fails | Lc 13.5 | Not readable |
| #613188 text on white | 9.11:1 | AAA | Lc 90.5 | Preferred for body text |
| #613188 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D2F2
oklch(88.6% 0.046 306.6)
-
Step 300
300
#CEB3EB
oklch(80.9% 0.083 306.5)
-
Step 400
400
#B689E1
oklch(70.7% 0.133 306.8)
-
Step 500
500
#A469D9
oklch(63.1% 0.17 306.5)
-
Step 600
600
#8F4DC6
oklch(55.5% 0.185 306.4)
-
Step 700
700
#7A3DAB
oklch(49.1% 0.172 306.6)
-
Step 800
800 (this color)
#613188
oklch(41.9% 0.142 306.7)
-
Step 900
900
#512E6F
oklch(37.7% 0.111 306.7)
-
Step 950
950
#2F1C41
oklch(27% 0.07 306)
#613188 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) | #00478B | 0.122 |
| Deuteranopia (no green cones) | #204986 | 0.108 |
| Tritanopia (no blue cones) | #5B4358 | 0.102 |
| Achromatopsia (no color) | #484848 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613188
#613188
oklch(41.9% 0.142 306.7)
- #3D5700
#3D5700
oklch(42% 0.108 126.9)
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 #613188, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.051
- Blueberry #464196 ΔE 0.061
- Purple #800080 ΔE 0.081
- Twilight #4E518B ΔE 0.083
- Chrysanthemum #560BAD ΔE 0.084
- Indigo #4B0082 ΔE 0.089
- Grape #7209B7 ΔE 0.091
Use #613188 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.