#A537C7
Closest named color: Dark Orchid (#9932CC). oklch(55.8% 0.221 316.9), rgb(165, 55, 199).
Aa
White text reads best on this color (5.28:1).
About this color
#A537C7 is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.221 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Orchid (#9932CC), ΔE 0.028 away. White text reads best on it, at 5.28:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.221) |
| Temperature | in between |
| Nearest name | Dark Orchid (#9932CC) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #A537C7 |
| RGB | rgb(165, 55, 199) |
| HSL | hsl(286, 57%, 50%) |
| OKLCH | oklch(55.8% 0.221 316.9) |
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 #A537C7 | 5.28:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #A537C7 | 3.97:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #A537C7 text on white | 5.28:1 | AA | Lc 75.3 | Fine for body text |
| #A537C7 text on black | 3.97:1 | AA large text | Lc -26.5 | 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
#F2E4F7
oklch(93.6% 0.029 317.2)
-
Step 200
200
#E8CEF2
oklch(88.4% 0.056 316.6)
-
Step 300
300
#DBADEC
oklch(81% 0.1 316.8)
-
Step 400
400
#C87EE2
oklch(70.7% 0.16 316.9)
-
Step 500
500
#B958D9
oklch(63.1% 0.203 316.9)
-
Step 600
600 (this color)
#A537C7
oklch(55.8% 0.221 316.9)
-
Step 700
700
#8D26AB
oklch(49.1% 0.206 317.2)
-
Step 800
800
#72238B
oklch(42.7% 0.17 316.7)
-
Step 900
900
#5D236F
oklch(37.7% 0.134 317.2)
-
Step 950
950
#361641
oklch(26.9% 0.084 316.6)
#A537C7 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) | #0065CB | 0.209 |
| Deuteranopia (no green cones) | #396FC4 | 0.189 |
| Tritanopia (no blue cones) | #A3557C | 0.141 |
| Achromatopsia (no color) | #6C6C6C | 0.223 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A537C7
#A537C7
oklch(55.8% 0.221 316.9)
- #3C8900
#3C8900
oklch(55.9% 0.169 137)
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 #A537C7, closest first.
No curated palette has a color within ΔE 0.04 of #A537C7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Orchid #9932CC ΔE 0.028
- Purply #983FB2 ΔE 0.041
- Vibrant Purple #AD03DE ΔE 0.053
- Dark Violet #9400D3 ΔE 0.066
- Medium Orchid #BA55D3 ΔE 0.071
- Blue Violet #8A2BE2 ΔE 0.074
- Purpley Pink #C83CB9 ΔE 0.076
- Amethyst #9B5FC0 ΔE 0.078
Use #A537C7 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.