#613A7A
Closest named color: Dark Slate Blue (#483D8B). oklch(42.4% 0.11 310.7), rgb(97, 58, 122).
Aa
White text reads best on this color (8.76:1).
About this color
#613A7A is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.110 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.053 away. White text reads best on it, at 8.76:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #613A7A |
| RGB | rgb(97, 58, 122) |
| HSL | hsl(277, 36%, 35%) |
| OKLCH | oklch(42.4% 0.11 310.7) |
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 #613A7A | 8.76:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #613A7A | 2.39:1 | Fails | Lc 14.2 | Not readable |
| #613A7A text on white | 8.76:1 | AAA | Lc 89.8 | Fine for body text |
| #613A7A text on black | 2.39:1 | Fails | Lc -12.5 | 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
#EEE7F3
oklch(93.7% 0.018 311.6)
-
Step 200
200
#E1D3EB
oklch(88.5% 0.036 311.4)
-
Step 300
300
#CEB5E0
oklch(80.8% 0.065 311)
-
Step 400
400
#B58ED0
oklch(70.7% 0.103 310.9)
-
Step 500
500
#A271C4
oklch(63.1% 0.131 310.3)
-
Step 600
600
#8E57B0
oklch(55.6% 0.144 311.1)
-
Step 700
700
#784798
oklch(49.1% 0.133 310.3)
-
Step 800
800 (this color)
#613A7A
oklch(42.4% 0.11 310.7)
-
Step 900
900
#503363
oklch(37.7% 0.086 310.7)
-
Step 950
950
#2F1E3A
oklch(27% 0.055 311.1)
#613A7A 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) | #2A497C | 0.090 |
| Deuteranopia (no green cones) | #354B78 | 0.081 |
| Tritanopia (no blue cones) | #5E4554 | 0.078 |
| Achromatopsia (no color) | #4B4B4B | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613A7A
#613A7A
oklch(42.4% 0.11 310.7)
- #385908
#385908
oklch(42.3% 0.11 130.7)
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 #613A7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.053
- Rebecca Purple #663399 ΔE 0.055
- Blueberry #464196 ΔE 0.066
- Twilight #4E518B ΔE 0.067
- Dusk #4E5481 ΔE 0.073
- Dusty Grape #545775 ΔE 0.084
- Light Eggplant #894585 ΔE 0.085
- Brownish Purple #76424E ΔE 0.093
Use #613A7A 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.