#633554
Closest named color: Purple Brown (#673A3F). oklch(39.8% 0.079 340.6), rgb(99, 53, 84).
Aa
White text reads best on this color (9.68:1).
About this color
#633554 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.079 and its hue 341°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.043 away. White text reads best on it, at 9.68:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.16:1 |
| White text | 9.68:1 |
Values
| HEX | #633554 |
| RGB | rgb(99, 53, 84) |
| HSL | hsl(320, 30%, 30%) |
| OKLCH | oklch(39.8% 0.079 340.6) |
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 #633554 | 9.68:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #633554 | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #633554 text on white | 9.68:1 | AAA | Lc 92.2 | Preferred for body text |
| #633554 text on black | 2.16:1 | Fails | Lc -10.2 | 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 900.
-
Step 50
50
#F9F3F7
oklch(97% 0.008 337.4)
-
Step 100
100
#F2E6ED
oklch(93.6% 0.016 341.4)
-
Step 200
200
#E9D1E0
oklch(88.5% 0.033 339.9)
-
Step 300
300
#DCB2CC
oklch(80.9% 0.059 340.9)
-
Step 400
400
#C989B3
oklch(70.7% 0.095 340.3)
-
Step 500
500
#BA6AA0
oklch(63.1% 0.122 340.5)
-
Step 600
600
#A5518A
oklch(55.7% 0.131 341.1)
-
Step 700
700
#8D4176
oklch(49.1% 0.123 340.4)
-
Step 800
800
#723660
oklch(42.6% 0.101 340)
-
Step 900
900 (this color)
#633554
oklch(39.8% 0.079 340.6)
-
Step 950
950
#371C2E
oklch(27.1% 0.051 340.8)
#633554 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) | #374055 | 0.082 |
| Deuteranopia (no green cones) | #434753 | 0.074 |
| Tritanopia (no blue cones) | #683641 | 0.035 |
| Achromatopsia (no color) | #444444 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633554
#633554
oklch(39.8% 0.079 340.6)
- #145439
#145439
oklch(39.8% 0.079 160.8)
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 #633554, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.043
- Brownish Purple #76424E ΔE 0.058
- Grape Purple #5D1451 ΔE 0.075
- Velvet #750851 ΔE 0.078
- Red Purple #820747 ΔE 0.085
- Merlot #730039 ΔE 0.086
- Rich Purple #720058 ΔE 0.086
- Charcoal Grey #3C4142 ΔE 0.088
Use #633554 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.