#613F6D
Closest named color: Dusk (#4E5481). oklch(42.6% 0.084 316.9), rgb(97, 63, 109).
Aa
White text reads best on this color (8.60:1).
About this color
#613F6D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.084 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.065 away. White text reads best on it, at 8.60:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.44:1 |
| White text | 8.60:1 |
Values
| HEX | #613F6D |
| RGB | rgb(97, 63, 109) |
| HSL | hsl(284, 27%, 34%) |
| OKLCH | oklch(42.6% 0.084 316.9) |
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 #613F6D | 8.60:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #613F6D | 2.44:1 | Fails | Lc 14.6 | Not readable |
| #613F6D text on white | 8.60:1 | AAA | Lc 89.4 | Fine for body text |
| #613F6D text on black | 2.44:1 | Fails | Lc -12.8 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7F0
oklch(93.6% 0.014 318.7)
-
Step 200
200
#E1D4E5
oklch(88.5% 0.027 318.2)
-
Step 300
300
#CEB7D6
oklch(80.9% 0.05 317.4)
-
Step 400
400
#B592C1
oklch(70.8% 0.078 317.4)
-
Step 500
500
#A276B2
oklch(63.1% 0.1 316.8)
-
Step 600
600
#8D5E9E
oklch(55.7% 0.109 316.7)
-
Step 700
700
#784D87
oklch(49.2% 0.102 317)
-
Step 800
800 (this color)
#613F6D
oklch(42.6% 0.084 316.9)
-
Step 900
900
#503659
oklch(37.8% 0.067 317.1)
-
Step 950
950
#2F2034
oklch(27.1% 0.042 317.5)
#613F6D 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) | #384A6F | 0.071 |
| Deuteranopia (no green cones) | #404D6C | 0.065 |
| Tritanopia (no blue cones) | #614551 | 0.055 |
| Achromatopsia (no color) | #4C4C4C | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613F6D
#613F6D
oklch(42.6% 0.084 316.9)
- #385929
#385929
oklch(42.6% 0.084 136.7)
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 #613F6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.065
- Twilight #4E518B ΔE 0.067
- Dusty Grape #545775 ΔE 0.068
- Brownish Purple #76424E ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.069
- Purple Brown #673A3F ΔE 0.075
- Blueberry #464196 ΔE 0.082
- Rebecca Purple #663399 ΔE 0.082
Use #613F6D 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.