#634573
Closest named color: Dusk (#4E5481). oklch(44.2% 0.081 313.2), rgb(99, 69, 115).
Aa
White text reads best on this color (7.98:1).
About this color
#634573 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.081 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.052 away. White text reads best on it, at 7.98:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.62:1 |
| White text | 7.98:1 |
Values
| HEX | #634573 |
| RGB | rgb(99, 69, 115) |
| HSL | hsl(279, 25%, 36%) |
| OKLCH | oklch(44.2% 0.081 313.2) |
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 #634573 | 7.98:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #634573 | 2.62:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #634573 text on white | 7.98:1 | AAA | Lc 87.6 | Fine for body text |
| #634573 text on black | 2.62:1 | Fails | Lc -14.6 | 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
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#DFD4E6
oklch(88.4% 0.027 312.6)
-
Step 300
300
#CCB8D7
oklch(80.9% 0.048 313.7)
-
Step 400
400
#B293C3
oklch(70.8% 0.077 313.5)
-
Step 500
500
#9E78B3
oklch(63.1% 0.096 313.1)
-
Step 600
600
#89609F
oklch(55.7% 0.105 313.2)
-
Step 700
700
#744F88
oklch(49.1% 0.098 313)
-
Step 800
800 (this color)
#634573
oklch(44.2% 0.081 313.2)
-
Step 900
900
#4D3759
oklch(37.6% 0.063 313.1)
-
Step 950
950
#2D2034
oklch(26.8% 0.04 313.4)
#634573 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) | #3D4F75 | 0.064 |
| Deuteranopia (no green cones) | #445172 | 0.058 |
| Tritanopia (no blue cones) | #624B56 | 0.056 |
| Achromatopsia (no color) | #515151 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634573
#634573
oklch(44.2% 0.081 313.2)
- #415D2C
#415D2C
oklch(44.3% 0.081 133.2)
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 #634573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.052
- Dusty Grape #545775 ΔE 0.054
- Twilight #4E518B ΔE 0.055
- Brownish Purple #76424E ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.070
- YInMn Blue #415A77 ΔE 0.075
- Light Eggplant #894585 ΔE 0.077
- Blueberry #464196 ΔE 0.079
Use #634573 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.