#641DAA
Closest named color: Grape (#7209B7). oklch(42.8% 0.203 300.3), rgb(100, 29, 170).
Aa
White text reads best on this color (9.13:1).
About this color
#641DAA is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.203 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape (#7209B7), ΔE 0.035 away. White text reads best on it, at 9.13:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.203) |
| Temperature | in between |
| Nearest name | Grape (#7209B7) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #641DAA |
| RGB | rgb(100, 29, 170) |
| HSL | hsl(270, 71%, 39%) |
| OKLCH | oklch(42.8% 0.203 300.3) |
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 #641DAA | 9.13:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #641DAA | 2.29:1 | Fails | Lc 14.2 | Not readable |
| #641DAA text on white | 9.13:1 | AAA | Lc 89.8 | Fine for body text |
| #641DAA text on black | 2.29:1 | Fails | Lc -12.5 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FE
oklch(93.6% 0.035 300.3)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CCB0FF
oklch(80.9% 0.113 300.2)
-
Step 400
400
#B481FF
oklch(70.7% 0.182 300.5)
-
Step 500
500
#A358FF
oklch(63.1% 0.236 300.3)
-
Step 600
600
#902EF1
oklch(55.6% 0.263 300.2)
-
Step 700
700
#7B1BD2
oklch(49.1% 0.245 300.3)
-
Step 800
800 (this color)
#641DAA
oklch(42.8% 0.203 300.3)
-
Step 900
900
#512186
oklch(37.6% 0.158 300.5)
-
Step 950
950
#2F164F
oklch(27.1% 0.1 299.9)
#641DAA 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) | #0048AE | 0.133 |
| Deuteranopia (no green cones) | #0047A7 | 0.134 |
| Tritanopia (no blue cones) | #534665 | 0.150 |
| Achromatopsia (no color) | #484848 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641DAA
#641DAA
oklch(42.8% 0.203 300.3)
- #485700
#485700
oklch(42.9% 0.102 120.5)
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 #641DAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape #7209B7 ΔE 0.035
- Chrysanthemum #560BAD ΔE 0.036
- Rebecca Purple #663399 ΔE 0.045
- Imperial Purple #480CA8 ΔE 0.063
- Purple Blue #5D21D0 ΔE 0.065
- Violet Blue #510AC9 ΔE 0.068
- Blue With A Hint Of Purple #533CC6 ΔE 0.075
- Bluey Purple #6241C7 ΔE 0.077
Use #641DAA 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.