#613D6D
Closest named color: Dark Slate Blue (#483D8B). oklch(42.2% 0.088 317.3), rgb(97, 61, 109).
Aa
White text reads best on this color (8.76:1).
About this color
#613D6D is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.088 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.068 away. White text reads best on it, at 8.76:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #613D6D |
| RGB | rgb(97, 61, 109) |
| HSL | hsl(285, 28%, 33%) |
| OKLCH | oklch(42.2% 0.088 317.3) |
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 #613D6D | 8.76:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #613D6D | 2.39:1 | Fails | Lc 14.1 | Not readable |
| #613D6D text on white | 8.76:1 | AAA | Lc 89.8 | Fine for body text |
| #613D6D 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
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E1D4E6
oklch(88.6% 0.028 316.7)
-
Step 300
300
#CFB7D7
oklch(81% 0.051 317.7)
-
Step 400
400
#B691C3
oklch(70.8% 0.082 317.2)
-
Step 500
500
#A375B3
oklch(63.1% 0.104 317.1)
-
Step 600
600
#8E5C9F
oklch(55.5% 0.115 317.2)
-
Step 700
700
#794C88
oklch(49.2% 0.106 317.3)
-
Step 800
800 (this color)
#613D6D
oklch(42.2% 0.088 317.3)
-
Step 900
900
#503559
oklch(37.6% 0.069 317.4)
-
Step 950
950
#2F1F34
oklch(26.9% 0.044 317.9)
#613D6D 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) | #35486F | 0.075 |
| Deuteranopia (no green cones) | #3F4C6C | 0.068 |
| Tritanopia (no blue cones) | #614350 | 0.057 |
| Achromatopsia (no color) | #4B4B4B | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613D6D
#613D6D
oklch(42.2% 0.088 317.3)
- #355826
#355826
oklch(42.1% 0.087 137.2)
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 #613D6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.068
- Dusk #4E5481 ΔE 0.069
- Twilight #4E518B ΔE 0.070
- Brownish Purple #76424E ΔE 0.071
- Dusty Grape #545775 ΔE 0.073
- Purple Brown #673A3F ΔE 0.076
- Rebecca Purple #663399 ΔE 0.080
- Blueberry #464196 ΔE 0.082
Use #613D6D 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.