#634366
Closest named color: Brownish Purple (#76424E). oklch(43.2% 0.069 323.7), rgb(99, 67, 102).
Aa
White text reads best on this color (8.31:1).
About this color
#634366 is a dark, muted purple. In OKLCH its lightness is 43%, its chroma 0.069 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.053 away. White text reads best on it, at 8.31:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.52:1 |
| White text | 8.31:1 |
Values
| HEX | #634366 |
| RGB | rgb(99, 67, 102) |
| HSL | hsl(295, 21%, 33%) |
| OKLCH | oklch(43.2% 0.069 323.7) |
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 #634366 | 8.31:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #634366 | 2.52:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #634366 text on white | 8.31:1 | AAA | Lc 88.6 | Fine for body text |
| #634366 text on black | 2.52:1 | Fails | Lc -13.6 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EEE7EE
oklch(93.5% 0.012 325.7)
-
Step 200
200
#E1D4E2
oklch(88.5% 0.024 323.6)
-
Step 300
300
#CEB8D0
oklch(80.9% 0.041 323.4)
-
Step 400
400
#B593B8
oklch(70.6% 0.065 323.6)
-
Step 500
500
#A278A6
oklch(63% 0.083 323.6)
-
Step 600
600
#8D6191
oklch(55.6% 0.089 323.8)
-
Step 700
700
#78507C
oklch(49.2% 0.084 323.6)
-
Step 800
800 (this color)
#634366
oklch(43.2% 0.069 323.7)
-
Step 900
900
#503852
oklch(37.8% 0.053 324)
-
Step 950
950
#2F2130
oklch(27.1% 0.034 324.2)
#634366 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) | #404C67 | 0.061 |
| Deuteranopia (no green cones) | #474F65 | 0.056 |
| Tritanopia (no blue cones) | #644650 | 0.041 |
| Achromatopsia (no color) | #4E4E4E | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634366
#634366
oklch(43.2% 0.069 323.7)
- #385A37
#385A37
oklch(43.1% 0.069 143.6)
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 #634366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.053
- Dusty Grape #545775 ΔE 0.059
- Purple Brown #673A3F ΔE 0.062
- Dusk #4E5481 ΔE 0.063
- Twilight #4E518B ΔE 0.071
- Dark Mauve #874C62 ΔE 0.076
- YInMn Blue #415A77 ΔE 0.079
- Dark Slate Blue #483D8B ΔE 0.084
Use #634366 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.