#A637B0
Closest named color: Purply (#983FB2). oklch(54.5% 0.202 324.4), rgb(166, 55, 176).
Aa
White text reads best on this color (5.53:1).
About this color
#A637B0 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.202 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purply (#983FB2), ΔE 0.028 away. White text reads best on it, at 5.53:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.202) |
| Temperature | in between |
| Nearest name | Purply (#983FB2) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #A637B0 |
| RGB | rgb(166, 55, 176) |
| HSL | hsl(295, 52%, 45%) |
| OKLCH | oklch(54.5% 0.202 324.4) |
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 #A637B0 | 5.53:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #A637B0 | 3.79:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #A637B0 text on white | 5.53:1 | AA | Lc 76.7 | Fine for body text |
| #A637B0 text on black | 3.79:1 | AA large text | Lc -25.1 | 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
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F3E4F4
oklch(93.5% 0.027 323.9)
-
Step 200
200
#EBCEEC
oklch(88.5% 0.051 325)
-
Step 300
300
#DFADE2
oklch(81% 0.091 324.5)
-
Step 400
400
#CD7FD3
oklch(70.8% 0.145 324.4)
-
Step 500
500
#BE5AC7
oklch(63% 0.186 324.2)
-
Step 600
600 (this color)
#A637B0
oklch(54.5% 0.202 324.4)
-
Step 700
700
#912B9A
oklch(49% 0.188 324.4)
-
Step 800
800
#76267D
oklch(42.7% 0.155 324.4)
-
Step 900
900
#602565
oklch(37.8% 0.122 324.5)
-
Step 950
950
#38173B
oklch(27% 0.076 324.2)
#A637B0 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) | #1860B3 | 0.210 |
| Deuteranopia (no green cones) | #4D6DAD | 0.177 |
| Tritanopia (no blue cones) | #A94B6F | 0.119 |
| Achromatopsia (no color) | #686868 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A637B0
#A637B0
oklch(54.5% 0.202 324.4)
- #00881D
#00881D
oklch(54.4% 0.175 144.4)
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 #A637B0, closest first.
No curated palette has a color within ΔE 0.04 of #A637B0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purply #983FB2 ΔE 0.028
- Dark Orchid #9932CC ΔE 0.054
- Warm Purple #952E8F ΔE 0.062
- Purpley Pink #C83CB9 ΔE 0.069
- Amethyst #9B5FC0 ΔE 0.078
- Medium Orchid #BA55D3 ΔE 0.082
- Pinky Purple #C94CBE ΔE 0.083
- Vibrant Purple #AD03DE ΔE 0.083
Use #A637B0 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.