#64457C
Closest named color: Twilight (#4E518B). oklch(44.8% 0.094 309), rgb(100, 69, 124).
Aa
White text reads best on this color (7.82:1).
About this color
#64457C is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.094 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.049 away. White text reads best on it, at 7.82:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #64457C |
| RGB | rgb(100, 69, 124) |
| HSL | hsl(274, 28%, 38%) |
| OKLCH | oklch(44.8% 0.094 309) |
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 #64457C | 7.82:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #64457C | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #64457C text on white | 7.82:1 | AAA | Lc 87.0 | Fine for body text |
| #64457C text on black | 2.68:1 | Fails | Lc -15.1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#DFD4E9
oklch(88.5% 0.031 309.1)
-
Step 300
300
#CBB8DC
oklch(81% 0.054 308.9)
-
Step 400
400
#B192CA
oklch(70.8% 0.087 309.4)
-
Step 500
500
#9D76BD
oklch(63.1% 0.112 308.7)
-
Step 600
600
#885DA9
oklch(55.5% 0.122 309)
-
Step 700
700
#734D91
oklch(49.1% 0.112 308.6)
-
Step 800
800 (this color)
#64457C
oklch(44.8% 0.094 309)
-
Step 900
900
#4D365F
oklch(37.7% 0.073 309.1)
-
Step 950
950
#2D2038
oklch(27.1% 0.047 308.4)
#64457C 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) | #39517E | 0.071 |
| Deuteranopia (no green cones) | #41527A | 0.064 |
| Tritanopia (no blue cones) | #614D5A | 0.067 |
| Achromatopsia (no color) | #525252 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64457C
#64457C
oklch(44.8% 0.094 309)
- #445F21
#445F21
oklch(44.9% 0.094 129.4)
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 #64457C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.049
- Dusk #4E5481 ΔE 0.051
- Dusty Grape #545775 ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.063
- Rebecca Purple #663399 ΔE 0.068
- Blueberry #464196 ΔE 0.070
- Light Eggplant #894585 ΔE 0.071
- YInMn Blue #415A77 ΔE 0.079
Use #64457C 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.