#81399D
Closest named color: Warm Purple (#952E8F). oklch(48.5% 0.165 315.3), rgb(129, 57, 157).
Aa
White text reads best on this color (6.98:1).
About this color
#81399D is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.165 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Warm Purple (#952E8F), ΔE 0.047 away. White text reads best on it, at 6.98:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Warm Purple (#952E8F) |
| Black text | 3.00:1 |
| White text | 6.98:1 |
Values
| HEX | #81399D |
| RGB | rgb(129, 57, 157) |
| HSL | hsl(283, 47%, 42%) |
| OKLCH | oklch(48.5% 0.165 315.3) |
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 #81399D | 6.98:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #81399D | 3.00:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #81399D text on white | 6.98:1 | AA | Lc 83.6 | Fine for body text |
| #81399D text on black | 3.00:1 | AA large text | Lc -18.4 | 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 700.
-
Step 50
50
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F5
oklch(93.7% 0.023 314.7)
-
Step 200
200
#E5D1EE
oklch(88.6% 0.045 315.5)
-
Step 300
300
#D5B1E4
oklch(80.9% 0.08 315.9)
-
Step 400
400
#BF87D7
oklch(70.7% 0.128 315.3)
-
Step 500
500
#AE66CC
oklch(63.1% 0.164 315.2)
-
Step 600
600
#994BB9
oklch(55.6% 0.177 314.9)
-
Step 700
700 (this color)
#81399D
oklch(48.5% 0.165 315.3)
-
Step 800
800
#6A3281
oklch(42.7% 0.136 314.9)
-
Step 900
900
#562D67
oklch(37.7% 0.105 315.1)
-
Step 950
950
#331B3D
oklch(27.1% 0.068 315.2)
#81399D 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) | #1555A0 | 0.155 |
| Deuteranopia (no green cones) | #385B9B | 0.134 |
| Tritanopia (no blue cones) | #7F4B66 | 0.107 |
| Achromatopsia (no color) | #595959 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81399D
#81399D
oklch(48.5% 0.165 315.3)
- #376F00
#376F00
oklch(48.4% 0.142 135.1)
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 #81399D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Purple #952E8F ΔE 0.047
- Light Eggplant #894585 ΔE 0.055
- Purply #983FB2 ΔE 0.056
- Rebecca Purple #663399 ΔE 0.056
- Dark Magenta #8B008B ΔE 0.070
- Purple #800080 ΔE 0.081
- Grape #7209B7 ΔE 0.083
- Dark Orchid #9932CC ΔE 0.085
Use #81399D 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.