#63406B
Closest named color: Brownish Purple (#76424E). oklch(42.9% 0.081 320), rgb(99, 64, 107).
Aa
White text reads best on this color (8.48:1).
About this color
#63406B is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.081 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.063 away. White text reads best on it, at 8.48:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #63406B |
| RGB | rgb(99, 64, 107) |
| HSL | hsl(289, 25%, 34%) |
| OKLCH | oklch(42.9% 0.081 320) |
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 #63406B | 8.48:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #63406B | 2.47:1 | Fails | Lc 14.9 | Not readable |
| #63406B text on white | 8.48:1 | AAA | Lc 89.1 | Fine for body text |
| #63406B text on black | 2.47:1 | Fails | Lc -13.2 | 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 800.
-
Step 50
50
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7F0
oklch(93.6% 0.014 318.7)
-
Step 200
200
#E1D4E4
oklch(88.5% 0.026 319.9)
-
Step 300
300
#CFB7D4
oklch(80.9% 0.048 320.4)
-
Step 400
400
#B692BE
oklch(70.8% 0.075 320.1)
-
Step 500
500
#A476AE
oklch(63.2% 0.097 320.3)
-
Step 600
600
#8E5E99
oklch(55.6% 0.104 320)
-
Step 700
700
#794D83
oklch(49.1% 0.098 320)
-
Step 800
800 (this color)
#63406B
oklch(42.9% 0.081 320)
-
Step 900
900
#503656
oklch(37.6% 0.063 319.9)
-
Step 950
950
#2F2033
oklch(27% 0.04 319)
#63406B 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) | #3A4A6D | 0.070 |
| Deuteranopia (no green cones) | #434E6A | 0.064 |
| Tritanopia (no blue cones) | #644550 | 0.052 |
| Achromatopsia (no color) | #4D4D4D | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63406B
#63406B
oklch(42.9% 0.081 320)
- #365A2E
#365A2E
oklch(42.8% 0.081 140)
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 #63406B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.063
- Dusk #4E5481 ΔE 0.065
- Dusty Grape #545775 ΔE 0.066
- Twilight #4E518B ΔE 0.069
- Purple Brown #673A3F ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.075
- Dark Mauve #874C62 ΔE 0.083
- Light Eggplant #894585 ΔE 0.085
Use #63406B 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.