#613678
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.115 312.5), rgb(97, 54, 120).
Aa
White text reads best on this color (9.10:1).
About this color
#613678 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.115 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.056 away. White text reads best on it, at 9.10:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #613678 |
| RGB | rgb(97, 54, 120) |
| HSL | hsl(279, 38%, 34%) |
| OKLCH | oklch(41.6% 0.115 312.5) |
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 #613678 | 9.10:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #613678 | 2.30:1 | Fails | Lc 13.3 | Not readable |
| #613678 text on white | 9.10:1 | AAA | Lc 90.6 | Preferred for body text |
| #613678 text on black | 2.30:1 | Fails | Lc -11.7 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F3
oklch(93.5% 0.019 312.8)
-
Step 200
200
#E2D2EB
oklch(88.4% 0.038 313.6)
-
Step 300
300
#D0B5E0
oklch(81% 0.066 312.9)
-
Step 400
400
#B88DD1
oklch(70.8% 0.107 312.6)
-
Step 500
500
#A66FC4
oklch(63.2% 0.136 312.8)
-
Step 600
600
#9155B1
oklch(55.7% 0.149 312.6)
-
Step 700
700
#7B4598
oklch(49.1% 0.138 312.4)
-
Step 800
800 (this color)
#613678
oklch(41.6% 0.115 312.5)
-
Step 900
900
#523263
oklch(37.8% 0.089 312.9)
-
Step 950
950
#301E3A
oklch(27.1% 0.055 312.7)
#613678 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) | #25467A | 0.098 |
| Deuteranopia (no green cones) | #334976 | 0.087 |
| Tritanopia (no blue cones) | #5F4151 | 0.079 |
| Achromatopsia (no color) | #484848 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613678
#613678
oklch(41.6% 0.115 312.5)
- #325803
#325803
oklch(41.6% 0.114 132.6)
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 #613678, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.056
- Rebecca Purple #663399 ΔE 0.056
- Blueberry #464196 ΔE 0.070
- Twilight #4E518B ΔE 0.076
- Dusk #4E5481 ΔE 0.082
- Purple #800080 ΔE 0.089
- Grape Purple #5D1451 ΔE 0.090
- Light Eggplant #894585 ΔE 0.091
Use #613678 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.