#99639B
Closest named color: Dark Lilac (#9C6DA5). oklch(57.8% 0.104 325.6), rgb(153, 99, 155).
Aa
Black text reads best on this color (4.61:1).
About this color
#99639B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 58%, its chroma 0.104 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Lilac (#9C6DA5), ΔE 0.027 away. Black text reads best on it, at 4.61:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Lilac (#9C6DA5) |
| Black text | 4.61:1 |
| White text | 4.55:1 |
Values
| HEX | #99639B |
| RGB | rgb(153, 99, 155) |
| HSL | hsl(298, 22%, 50%) |
| OKLCH | oklch(57.8% 0.104 325.6) |
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 #99639B | 4.55:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #99639B | 4.61:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #99639B text on white | 4.55:1 | AA | Lc 71.5 | Content text, not long reading |
| #99639B text on black | 4.61:1 | AA | Lc -30.2 | Non-text elements, placeholder text |
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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EFE7EF
oklch(93.7% 0.014 325.7)
-
Step 200
200
#E3D4E3
oklch(88.6% 0.026 325.8)
-
Step 300
300
#D1B7D1
oklch(81% 0.046 326)
-
Step 400
400
#B991BA
oklch(70.7% 0.074 325.5)
-
Step 500
500
#A775A9
oklch(63.1% 0.095 325.3)
-
Step 600
600 (this color)
#99639B
oklch(57.8% 0.104 325.6)
-
Step 700
700
#7C4C7E
oklch(49% 0.096 325.5)
-
Step 800
800
#653F67
oklch(42.8% 0.08 325.1)
-
Step 900
900
#533654
oklch(37.9% 0.062 325.6)
-
Step 950
950
#302031
oklch(27.1% 0.038 324.6)
#99639B 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) | #5E729D | 0.096 |
| Deuteranopia (no green cones) | #6C7899 | 0.087 |
| Tritanopia (no blue cones) | #9C6878 | 0.060 |
| Achromatopsia (no color) | #767676 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99639B
#99639B
oklch(57.8% 0.104 325.6)
- #4E8A53
#4E8A53
oklch(57.8% 0.104 145.9)
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 #99639B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Lilac #9C6DA5 ΔE 0.027
- Faded Purple #916E99 ΔE 0.031
- Dark Lavender #856798 ΔE 0.035
- Light Plum #9D5783 ΔE 0.041
- Soft Purple #A66FB5 ΔE 0.051
- Dusty Purple #825F87 ΔE 0.052
- Deep Lilac #966EBD ΔE 0.053
- Deep Lavender #8D5EB7 ΔE 0.054
Use #99639B 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.