#A645D0
Closest named color: Dark Orchid (#9932CC). oklch(58% 0.213 313.9), rgb(166, 69, 208).
Aa
White text reads best on this color (4.79:1).
About this color
#A645D0 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.213 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Orchid (#9932CC), ΔE 0.042 away. White text reads best on it, at 4.79:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.213) |
| Temperature | in between |
| Nearest name | Dark Orchid (#9932CC) |
| Black text | 4.38:1 |
| White text | 4.79:1 |
Values
| HEX | #A645D0 |
| RGB | rgb(166, 69, 208) |
| HSL | hsl(282, 60%, 54%) |
| OKLCH | oklch(58% 0.213 313.9) |
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 #A645D0 | 4.79:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #A645D0 | 4.38:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #A645D0 text on white | 4.79:1 | AA | Lc 72.5 | Content text, not long reading |
| #A645D0 text on black | 4.38:1 | AA large text | Lc -29.2 | Dividers and decoration only |
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 600.
-
Step 50
50
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F1E5F7
oklch(93.7% 0.027 314.7)
-
Step 200
200
#E6CFF2
oklch(88.4% 0.053 314.2)
-
Step 300
300
#D7AEEC
oklch(80.8% 0.096 314)
-
Step 400
400
#C381E3
oklch(70.7% 0.154 314)
-
Step 500
500
#B35CDB
oklch(63.1% 0.197 313.8)
-
Step 600
600 (this color)
#A645D0
oklch(58% 0.213 313.9)
-
Step 700
700
#872DAD
oklch(49% 0.198 313.6)
-
Step 800
800
#6E288C
oklch(42.7% 0.164 313.8)
-
Step 900
900
#592670
oklch(37.6% 0.129 313.7)
-
Step 950
950
#341842
oklch(27% 0.081 313)
#A645D0 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) | #006DD4 | 0.198 |
| Deuteranopia (no green cones) | #3E75CD | 0.175 |
| Tritanopia (no blue cones) | #A26185 | 0.142 |
| Achromatopsia (no color) | #727272 | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A645D0
#A645D0
oklch(58% 0.213 313.9)
- #4E8E00
#4E8E00
oklch(58.1% 0.166 133.8)
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 #A645D0, closest first.
No curated palette has a color within ΔE 0.04 of #A645D0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Orchid #9932CC ΔE 0.042
- Medium Orchid #BA55D3 ΔE 0.051
- Purply #983FB2 ΔE 0.053
- Amethyst #9B5FC0 ΔE 0.061
- Lighter Purple #A55AF4 ΔE 0.064
- Vibrant Purple #AD03DE ΔE 0.065
- Purpley #8756E4 ΔE 0.069
- Purpley Pink #C83CB9 ΔE 0.075
Use #A645D0 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.