#651D8A
Closest named color: Rebecca Purple (#663399). oklch(40.2% 0.172 310.9), rgb(101, 29, 138).
Aa
White text reads best on this color (10.01:1).
About this color
#651D8A is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.172 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.045 away. White text reads best on it, at 10.01:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #651D8A |
| RGB | rgb(101, 29, 138) |
| HSL | hsl(280, 65%, 33%) |
| OKLCH | oklch(40.2% 0.172 310.9) |
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 #651D8A | 10.01:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #651D8A | 2.09:1 | Fails | Lc 11.7 | Not readable |
| #651D8A text on white | 10.01:1 | AAA | Lc 92.2 | Preferred for body text |
| #651D8A text on black | 2.09:1 | 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
#F9F2FE
oklch(97% 0.017 311.6)
-
Step 100
100
#F2E3FD
oklch(93.5% 0.038 311.1)
-
Step 200
200
#E8CCFD
oklch(88.4% 0.073 310.6)
-
Step 300
300
#DBA8FE
oklch(80.8% 0.129 310.8)
-
Step 400
400
#C973FD
oklch(70.6% 0.207 311)
-
Step 500
500
#BB41FB
oklch(63.1% 0.264 310.8)
-
Step 600
600
#A600E7
oklch(55.6% 0.28 310.9)
-
Step 700
700
#8C00C4
oklch(49.1% 0.247 310.8)
-
Step 800
800
#7300A2
oklch(42.6% 0.215 310.8)
-
Step 900
900 (this color)
#651D8A
oklch(40.2% 0.172 310.9)
-
Step 950
950
#370F4C
oklch(27% 0.109 311.1)
#651D8A 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) | #003F8D | 0.143 |
| Deuteranopia (no green cones) | #014388 | 0.145 |
| Tritanopia (no blue cones) | #603753 | 0.115 |
| Achromatopsia (no color) | #424242 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #651D8A
#651D8A
oklch(40.2% 0.172 310.9)
- #325300
#325300
oklch(40.1% 0.11 131)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #651D8A
These curated palettes and gradients contain exactly #651D8A. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.045
- Purple #800080 ΔE 0.062
- Indigo #4B0082 ΔE 0.069
- Chrysanthemum #560BAD ΔE 0.071
- Grape #7209B7 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.079
- Dark Magenta #8B008B ΔE 0.080
- Royal Purple #4B006E ΔE 0.083
Use #651D8A 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.