#613F66
Closest named color: Brownish Purple (#76424E). oklch(42.2% 0.076 322.2), rgb(97, 63, 102).
Aa
White text reads best on this color (8.70:1).
About this color
#613F66 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.076 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.060 away. White text reads best on it, at 8.70:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #613F66 |
| RGB | rgb(97, 63, 102) |
| HSL | hsl(292, 24%, 32%) |
| OKLCH | oklch(42.2% 0.076 322.2) |
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 #613F66 | 8.70:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #613F66 | 2.41:1 | Fails | Lc 14.2 | Not readable |
| #613F66 text on white | 8.70:1 | AAA | Lc 89.7 | Fine for body text |
| #613F66 text on black | 2.41:1 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7EF
oklch(93.6% 0.013 321.9)
-
Step 200
200
#E1D4E3
oklch(88.5% 0.025 321.7)
-
Step 300
300
#CFB8D2
oklch(81% 0.044 322.3)
-
Step 400
400
#B692BB
oklch(70.7% 0.071 322.3)
-
Step 500
500
#A377AA
oklch(63.1% 0.09 321.8)
-
Step 600
600
#8E5F95
oklch(55.6% 0.098 322.2)
-
Step 700
700
#794E7F
oklch(49.1% 0.092 322.5)
-
Step 800
800 (this color)
#613F66
oklch(42.2% 0.076 322.2)
-
Step 900
900
#503754
oklch(37.7% 0.058 321.8)
-
Step 950
950
#2F2031
oklch(26.9% 0.037 322.5)
#613F66 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) | #3B4967 | 0.067 |
| Deuteranopia (no green cones) | #434C65 | 0.061 |
| Tritanopia (no blue cones) | #62434E | 0.046 |
| Achromatopsia (no color) | #4B4B4B | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613F66
#613F66
oklch(42.2% 0.076 322.2)
- #345831
#345831
oklch(42.2% 0.075 142.4)
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 #613F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.060
- Purple Brown #673A3F ΔE 0.063
- Dusty Grape #545775 ΔE 0.068
- Dusk #4E5481 ΔE 0.069
- Twilight #4E518B ΔE 0.074
- Dark Slate Blue #483D8B ΔE 0.078
- Dark Mauve #874C62 ΔE 0.086
- YInMn Blue #415A77 ΔE 0.086
Use #613F66 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.