#633658
Closest named color: Purple Brown (#673A3F). oklch(40.2% 0.08 336.7), rgb(99, 54, 88).
Aa
White text reads best on this color (9.54:1).
About this color
#633658 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.080 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.048 away. White text reads best on it, at 9.54:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #633658 |
| RGB | rgb(99, 54, 88) |
| HSL | hsl(315, 29%, 30%) |
| OKLCH | oklch(40.2% 0.08 336.7) |
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 #633658 | 9.54:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #633658 | 2.19:1 | Fails | Lc 12.1 | Not readable |
| #633658 text on white | 9.54:1 | AAA | Lc 91.9 | Preferred for body text |
| #633658 text on black | 2.19:1 | Fails | Lc -10.5 | 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 900.
-
Step 50
50
#F9F3F7
oklch(97% 0.008 337.4)
-
Step 100
100
#F2E6EE
oklch(93.7% 0.017 337.6)
-
Step 200
200
#E8D1E1
oklch(88.4% 0.033 336.7)
-
Step 300
300
#DBB2CF
oklch(80.9% 0.061 336.9)
-
Step 400
400
#C789B7
oklch(70.6% 0.097 336.4)
-
Step 500
500
#B86BA5
oklch(63.2% 0.123 336.7)
-
Step 600
600
#A35190
oklch(55.7% 0.134 336.8)
-
Step 700
700
#8B417A
oklch(49% 0.124 336.9)
-
Step 800
800
#713664
oklch(42.7% 0.104 336.3)
-
Step 900
900 (this color)
#633658
oklch(40.2% 0.08 336.7)
-
Step 950
950
#361C30
oklch(27% 0.052 336)
#633658 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) | #374159 | 0.081 |
| Deuteranopia (no green cones) | #434857 | 0.074 |
| Tritanopia (no blue cones) | #673843 | 0.039 |
| Achromatopsia (no color) | #454545 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633658
#633658
oklch(40.2% 0.08 336.7)
- #1A5536
#1A5536
oklch(40.2% 0.08 156.6)
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 #633658, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.048
- Brownish Purple #76424E ΔE 0.059
- Grape Purple #5D1451 ΔE 0.076
- Velvet #750851 ΔE 0.079
- Rich Purple #720058 ΔE 0.086
- Red Purple #820747 ΔE 0.087
- Merlot #730039 ΔE 0.090
- Charcoal Grey #3C4142 ΔE 0.090
Use #633658 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.