#613D6C
Closest named color: Dark Slate Blue (#483D8B). oklch(42.1% 0.087 318), rgb(97, 61, 108).
Aa
White text reads best on this color (8.77:1).
About this color
#613D6C is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.087 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.069 away. White text reads best on it, at 8.77:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.39:1 |
| White text | 8.77:1 |
Values
| HEX | #613D6C |
| RGB | rgb(97, 61, 108) |
| HSL | hsl(286, 28%, 33%) |
| OKLCH | oklch(42.1% 0.087 318) |
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 #613D6C | 8.77:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #613D6C | 2.39:1 | Fails | Lc 14.1 | Not readable |
| #613D6C text on white | 8.77:1 | AAA | Lc 89.9 | Fine for body text |
| #613D6C text on black | 2.39:1 | Fails | Lc -12.4 | 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
#CFB7D6
oklch(80.9% 0.05 318.5)
-
Step 400
400
#B691C2
oklch(70.7% 0.081 317.8)
-
Step 500
500
#A475B2
oklch(63.2% 0.103 318.3)
-
Step 600
600
#8F5D9E
oklch(55.7% 0.112 318.2)
-
Step 700
700
#794C87
oklch(49.1% 0.105 317.9)
-
Step 800
800 (this color)
#613D6C
oklch(42.1% 0.087 318)
-
Step 900
900
#513559
oklch(37.7% 0.069 318.5)
-
Step 950
950
#2F2034
oklch(27.1% 0.042 317.5)
#613D6C 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) | #36486E | 0.074 |
| Deuteranopia (no green cones) | #3F4C6B | 0.068 |
| Tritanopia (no blue cones) | #61434F | 0.057 |
| Achromatopsia (no color) | #4B4B4B | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613D6C
#613D6C
oklch(42.1% 0.087 318)
- #345827
#345827
oklch(42% 0.087 138)
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 #613D6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.069
- Dusk #4E5481 ΔE 0.069
- Brownish Purple #76424E ΔE 0.070
- Twilight #4E518B ΔE 0.071
- Dusty Grape #545775 ΔE 0.073
- Purple Brown #673A3F ΔE 0.075
- Rebecca Purple #663399 ΔE 0.082
- Blueberry #464196 ΔE 0.083
Use #613D6C 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.