#634889
Closest named color: Twilight (#4E518B). oklch(46% 0.106 301.6), rgb(99, 72, 137).
Aa
White text reads best on this color (7.45:1).
About this color
#634889 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.106 and its hue 302°. 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 7.45:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #634889 |
| RGB | rgb(99, 72, 137) |
| HSL | hsl(265, 31%, 41%) |
| OKLCH | oklch(46% 0.106 301.6) |
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 #634889 | 7.45:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #634889 | 2.81:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #634889 text on white | 7.45:1 | AAA | Lc 85.7 | Fine for body text |
| #634889 text on black | 2.81:1 | Fails | Lc -16.3 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DCD5E9
oklch(88.5% 0.028 301.7)
-
Step 300
300
#C6B9DD
oklch(80.8% 0.052 301.7)
-
Step 400
400
#A995CC
oklch(70.7% 0.082 301)
-
Step 500
500
#957ABE
oklch(63.1% 0.104 301.8)
-
Step 600
600
#7F62AB
oklch(55.6% 0.114 301.1)
-
Step 700
700 (this color)
#634889
oklch(46% 0.106 301.6)
-
Step 800
800
#584277
oklch(42.7% 0.089 301.9)
-
Step 900
900
#483860
oklch(37.6% 0.069 301.6)
-
Step 950
950
#2A2138
oklch(26.9% 0.043 301.5)
#634889 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) | #35558B | 0.072 |
| Deuteranopia (no green cones) | #3C5587 | 0.066 |
| Tritanopia (no blue cones) | #5C5362 | 0.080 |
| Achromatopsia (no color) | #555555 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634889
#634889
oklch(46% 0.106 301.6)
- #4F610B
#4F610B
oklch(46.1% 0.106 121.8)
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 #634889, 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 0.049
- Rebecca Purple #663399 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.059
- Blueberry #464196 ΔE 0.060
- Dusty Grape #545775 ΔE 0.063
- Light Eggplant #894585 ΔE 0.070
- Dusky Blue #475F94 ΔE 0.071
Use #634889 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.