#64508E
Closest named color: Twilight (#4E518B). oklch(47.9% 0.099 297.4), rgb(100, 80, 142).
Aa
White text reads best on this color (6.81:1).
About this color
#64508E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.099 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.036 away. White text reads best on it, at 6.81:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.07:1 |
| White text | 6.81:1 |
Values
| HEX | #64508E |
| RGB | rgb(100, 80, 142) |
| HSL | hsl(259, 28%, 44%) |
| OKLCH | oklch(47.9% 0.099 297.4) |
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 #64508E | 6.81:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #64508E | 3.07:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #64508E text on white | 6.81:1 | AA | Lc 83.4 | Fine for body text |
| #64508E text on black | 3.07:1 | AA large text | Lc -18.5 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DBD6E9
oklch(88.6% 0.026 297.9)
-
Step 300
300
#C4BBDC
oklch(81% 0.047 297.8)
-
Step 400
400
#A697CB
oklch(70.8% 0.076 297.6)
-
Step 500
500
#907CBE
oklch(63% 0.099 297.4)
-
Step 600
600
#7B65AA
oklch(55.7% 0.107 297.5)
-
Step 700
700 (this color)
#64508E
oklch(47.9% 0.099 297.4)
-
Step 800
800
#544476
oklch(42.6% 0.083 297.5)
-
Step 900
900
#453A5F
oklch(37.7% 0.063 296.9)
-
Step 950
950
#292238
oklch(27% 0.041 298.2)
#64508E 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) | #3E5B90 | 0.059 |
| Deuteranopia (no green cones) | #425A8C | 0.055 |
| Tritanopia (no blue cones) | #5B5B68 | 0.079 |
| Achromatopsia (no color) | #5B5B5B | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64508E
#64508E
oklch(47.9% 0.099 297.4)
- #596417
#596417
oklch(47.8% 0.099 117.5)
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 #64508E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.036
- Dusk #4E5481 ΔE 0.044
- Dusky Blue #475F94 ΔE 0.055
- Dusty Grape #545775 ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.062
- Muted Purple #805B87 ΔE 0.062
- Blueberry #464196 ΔE 0.070
- Light Eggplant #894585 ΔE 0.070
Use #64508E 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.