#631660
Closest named color: Grape Purple (#5D1451). oklch(36.3% 0.14 329.7), rgb(99, 22, 96).
Aa
White text reads best on this color (11.57:1).
About this color
#631660 is a dark, vivid purple. In OKLCH its lightness is 36%, its chroma 0.140 and its hue 330°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.028 away. White text reads best on it, at 11.57:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.81:1 |
| White text | 11.57:1 |
Values
| HEX | #631660 |
| RGB | rgb(99, 22, 96) |
| HSL | hsl(302, 64%, 24%) |
| OKLCH | oklch(36.3% 0.14 329.7) |
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 #631660 | 11.57:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #631660 | 1.81:1 | Fails | Lc 8.3 | Not readable |
| #631660 text on white | 11.57:1 | AAA | Lc 95.6 | Preferred for body text |
| #631660 text on black | 1.81:1 | Fails | Lc 0.0 | 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
#FBF2FA
oklch(97% 0.014 329.1)
-
Step 100
100
#F6E3F4
oklch(93.6% 0.03 329.1)
-
Step 200
200
#F0CCEC
oklch(88.5% 0.058 329.7)
-
Step 300
300
#E7A8E1
oklch(80.9% 0.105 329.8)
-
Step 400
400
#D976D2
oklch(70.8% 0.167 329.8)
-
Step 500
500
#CC4BC6
oklch(63.1% 0.214 329.7)
-
Step 600
600
#B821B3
oklch(55.7% 0.234 329.7)
-
Step 700
700
#9E0D9A
oklch(49.2% 0.218 329.7)
-
Step 800
800
#80137D
oklch(42.7% 0.18 329.5)
-
Step 900
900 (this color)
#631660
oklch(36.3% 0.14 329.7)
-
Step 950
950
#3D123B
oklch(27.1% 0.089 329.6)
#631660 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) | #0B3262 | 0.151 |
| Deuteranopia (no green cones) | #2D3C5E | 0.127 |
| Tritanopia (no blue cones) | #67213A | 0.076 |
| Achromatopsia (no color) | #393939 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631660
#631660
oklch(36.3% 0.14 329.7)
- #004C1E
#004C1E
oklch(36.4% 0.101 149.6)
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 #631660, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.028
- Rich Purple #720058 ΔE 0.037
- Velvet #750851 ΔE 0.048
- Plum Purple #4E0550 ΔE 0.061
- Royal Purple #4B006E ΔE 0.071
- Deep Violet #490648 ΔE 0.076
- Merlot #730039 ΔE 0.076
- Purple #800080 ΔE 0.079
Use #631660 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.