#634883
Closest named color: Twilight (#4E518B). oklch(45.7% 0.098 303.9), rgb(99, 72, 131).
Aa
White text reads best on this color (7.53:1).
About this color
#634883 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.098 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.040 away. White text reads best on it, at 7.53:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.78:1 |
| White text | 7.53:1 |
Values
| HEX | #634883 |
| RGB | rgb(99, 72, 131) |
| HSL | hsl(267, 29%, 40%) |
| OKLCH | oklch(45.7% 0.098 303.9) |
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 #634883 | 7.53:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #634883 | 2.78:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #634883 text on white | 7.53:1 | AAA | Lc 86.1 | Fine for body text |
| #634883 text on black | 2.78:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DDD4EB
oklch(88.4% 0.033 303.4)
-
Step 300
300
#C8B8DF
oklch(80.9% 0.057 303.8)
-
Step 400
400
#AD93CF
oklch(70.8% 0.09 304)
-
Step 500
500
#9977C3
oklch(63.2% 0.116 303.8)
-
Step 600
600
#845EAF
oklch(55.6% 0.127 304.2)
-
Step 700
700
#6F4D96
oklch(49% 0.118 303.9)
-
Step 800
800 (this color)
#634883
oklch(45.7% 0.098 303.9)
-
Step 900
900
#4A3762
oklch(37.7% 0.075 303.4)
-
Step 950
950
#2B203A
oklch(26.9% 0.049 302.7)
#634883 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) | #395485 | 0.068 |
| Deuteranopia (no green cones) | #3F5481 | 0.062 |
| Tritanopia (no blue cones) | #5E525F | 0.074 |
| Achromatopsia (no color) | #545454 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634883
#634883
oklch(45.7% 0.098 303.9)
- #4C601A
#4C601A
oklch(45.7% 0.098 124)
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 #634883, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.040
- Dusk #4E5481 ΔE 0.046
- Dusty Grape #545775 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.061
- Blueberry #464196 ΔE 0.064
- Rebecca Purple #663399 ΔE 0.065
- Light Eggplant #894585 ΔE 0.070
- Dusky Blue #475F94 ΔE 0.072
Use #634883 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.