#613A7D
Closest named color: Dark Slate Blue (#483D8B). oklch(42.6% 0.114 309.2), rgb(97, 58, 125).
Aa
White text reads best on this color (8.71:1).
About this color
#613A7D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.114 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.051 away. White text reads best on it, at 8.71:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #613A7D |
| RGB | rgb(97, 58, 125) |
| HSL | hsl(275, 37%, 36%) |
| OKLCH | oklch(42.6% 0.114 309.2) |
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 #613A7D | 8.71:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #613A7D | 2.40:1 | Fails | Lc 14.4 | Not readable |
| #613A7D text on white | 8.71:1 | AAA | Lc 89.6 | Fine for body text |
| #613A7D text on black | 2.40:1 | Fails | Lc -12.6 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE7F4
oklch(93.7% 0.019 309.8)
-
Step 200
200
#E0D3EC
oklch(88.5% 0.037 308.8)
-
Step 300
300
#CDB5E2
oklch(80.8% 0.067 309)
-
Step 400
400
#B48ED3
oklch(70.7% 0.106 309)
-
Step 500
500
#A270C7
oklch(63.1% 0.136 309.5)
-
Step 600
600
#8D57B4
oklch(55.7% 0.148 309.2)
-
Step 700
700
#78469B
oklch(49.1% 0.139 309.4)
-
Step 800
800 (this color)
#613A7D
oklch(42.6% 0.114 309.2)
-
Step 900
900
#4F3365
oklch(37.7% 0.088 308.6)
-
Step 950
950
#2F1E3B
oklch(27.1% 0.056 310.1)
#613A7D 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) | #27497F | 0.093 |
| Deuteranopia (no green cones) | #334C7B | 0.084 |
| Tritanopia (no blue cones) | #5D4556 | 0.079 |
| Achromatopsia (no color) | #4B4B4B | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613A7D
#613A7D
oklch(42.6% 0.114 309.2)
- #3A5A00
#3A5A00
oklch(42.6% 0.114 129.5)
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 #613A7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.051
- Rebecca Purple #663399 ΔE 0.051
- Blueberry #464196 ΔE 0.063
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.073
- Light Eggplant #894585 ΔE 0.085
- Dusty Grape #545775 ΔE 0.085
- Purple #800080 ΔE 0.094
Use #613A7D 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.