#63346B
Closest named color: Dark Slate Blue (#483D8B). oklch(40.8% 0.104 321.6), rgb(99, 52, 107).
Aa
White text reads best on this color (9.40:1).
About this color
#63346B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.104 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.073 away. White text reads best on it, at 9.40:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #63346B |
| RGB | rgb(99, 52, 107) |
| HSL | hsl(291, 35%, 31%) |
| OKLCH | oklch(40.8% 0.104 321.6) |
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 #63346B | 9.40:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #63346B | 2.23:1 | Fails | Lc 12.5 | Not readable |
| #63346B text on white | 9.40:1 | AAA | Lc 91.4 | Preferred for body text |
| #63346B text on black | 2.23:1 | Fails | Lc -10.9 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#F0E6F1
oklch(93.6% 0.018 323)
-
Step 200
200
#E4D2E7
oklch(88.5% 0.034 321.4)
-
Step 300
300
#D4B4D9
oklch(80.9% 0.062 321.7)
-
Step 400
400
#BD8CC5
oklch(70.6% 0.098 321.7)
-
Step 500
500
#AC6FB6
oklch(63.2% 0.123 321.8)
-
Step 600
600
#9755A2
oklch(55.6% 0.136 321.7)
-
Step 700
700
#81458B
oklch(49.1% 0.126 321.7)
-
Step 800
800 (this color)
#63346B
oklch(40.8% 0.104 321.6)
-
Step 900
900
#55325B
oklch(37.7% 0.08 321.6)
-
Step 950
950
#321D35
oklch(26.9% 0.052 322.4)
#63346B 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) | #2C436D | 0.096 |
| Deuteranopia (no green cones) | #3A4869 | 0.086 |
| Tritanopia (no blue cones) | #643B4A | 0.064 |
| Achromatopsia (no color) | #464646 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63346B
#63346B
oklch(40.8% 0.104 321.6)
- #24571E
#24571E
oklch(40.8% 0.103 141.6)
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 #63346B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.073
- Grape Purple #5D1451 ΔE 0.075
- Rebecca Purple #663399 ΔE 0.077
- Velvet #750851 ΔE 0.080
- Rich Purple #720058 ΔE 0.080
- Purple Brown #673A3F ΔE 0.082
- Brownish Purple #76424E ΔE 0.082
- Twilight #4E518B ΔE 0.088
Use #63346B 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.