#64497E
Closest named color: Twilight (#4E518B). oklch(45.7% 0.089 306.6), rgb(100, 73, 126).
Aa
White text reads best on this color (7.51:1).
About this color
#64497E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.089 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.043 away. White text reads best on it, at 7.51:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #64497E |
| RGB | rgb(100, 73, 126) |
| HSL | hsl(271, 27%, 39%) |
| OKLCH | oklch(45.7% 0.089 306.6) |
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 #64497E | 7.51:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #64497E | 2.79:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #64497E text on white | 7.51:1 | AAA | Lc 86.0 | Fine for body text |
| #64497E text on black | 2.79:1 | Fails | Lc -16.1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE7F2
oklch(93.5% 0.016 306.4)
-
Step 200
200
#DED5E9
oklch(88.6% 0.029 306)
-
Step 300
300
#C9B8DC
oklch(80.8% 0.053 306.5)
-
Step 400
400
#AE93CA
oklch(70.7% 0.084 306.7)
-
Step 500
500
#9A78BC
oklch(63.1% 0.106 306.5)
-
Step 600
600
#8560A8
oklch(55.7% 0.115 306.7)
-
Step 700
700
#704F90
oklch(49.1% 0.107 306.3)
-
Step 800
800 (this color)
#64497E
oklch(45.7% 0.089 306.6)
-
Step 900
900
#4B375E
oklch(37.6% 0.069 306.9)
-
Step 950
950
#2C2137
oklch(27.1% 0.042 306.7)
#64497E 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) | #3D5480 | 0.064 |
| Deuteranopia (no green cones) | #43557D | 0.059 |
| Tritanopia (no blue cones) | #60515D | 0.066 |
| Achromatopsia (no color) | #555555 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64497E
#64497E
oklch(45.7% 0.089 306.6)
- #4A6025
#4A6025
oklch(45.7% 0.089 126.8)
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 #64497E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.043
- Dusk #4E5481 ΔE 0.044
- Dusty Grape #545775 ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.067
- Light Eggplant #894585 ΔE 0.069
- Blueberry #464196 ΔE 0.072
- YInMn Blue #415A77 ΔE 0.072
- Dusky Blue #475F94 ΔE 0.072
Use #64497E 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.