#65399E
Closest named color: Rebecca Purple (#663399). oklch(45.1% 0.157 300.2), rgb(101, 57, 158).
Aa
White text reads best on this color (7.97:1).
About this color
#65399E is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.157 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.014 away. White text reads best on it, at 7.97:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #65399E |
| RGB | rgb(101, 57, 158) |
| HSL | hsl(266, 47%, 42%) |
| OKLCH | oklch(45.1% 0.157 300.2) |
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 #65399E | 7.97:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #65399E | 2.63:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #65399E text on white | 7.97:1 | AAA | Lc 87.2 | Fine for body text |
| #65399E text on black | 2.63:1 | Fails | Lc -14.9 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DED2F7
oklch(88.5% 0.052 300.1)
-
Step 300
300
#CAB3F4
oklch(80.9% 0.093 300.5)
-
Step 400
400
#AF89EE
oklch(70.6% 0.148 300)
-
Step 500
500
#9D68E8
oklch(63.2% 0.188 300.2)
-
Step 600
600
#894BD6
oklch(55.7% 0.204 300.3)
-
Step 700
700
#743ABA
oklch(49.1% 0.191 300.1)
-
Step 800
800 (this color)
#65399E
oklch(45.1% 0.157 300.2)
-
Step 900
900
#4D2D78
oklch(37.7% 0.124 300.2)
-
Step 950
950
#2D1B46
oklch(27% 0.078 300.6)
#65399E 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) | #0050A1 | 0.117 |
| Deuteranopia (no green cones) | #10509C | 0.113 |
| Tritanopia (no blue cones) | #594F66 | 0.119 |
| Achromatopsia (no color) | #515151 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #65399E
#65399E
oklch(45.1% 0.157 300.2)
- #4E5E00
#4E5E00
oklch(45.2% 0.108 120.5)
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 #65399E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.014
- Blueberry #464196 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.067
- Grape #7209B7 ΔE 0.072
- Blue With A Hint Of Purple #533CC6 ΔE 0.073
- Twilight #4E518B ΔE 0.077
- Chrysanthemum #560BAD ΔE 0.078
Use #65399E 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.