#64407D
Closest named color: Twilight (#4E518B). oklch(44% 0.104 310), rgb(100, 64, 125).
Aa
White text reads best on this color (8.16:1).
About this color
#64407D is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.104 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.056 away. White text reads best on it, at 8.16:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.57:1 |
| White text | 8.16:1 |
Values
| HEX | #64407D |
| RGB | rgb(100, 64, 125) |
| HSL | hsl(275, 32%, 37%) |
| OKLCH | oklch(44% 0.104 310) |
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 #64407D | 8.16:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #64407D | 2.57:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #64407D text on white | 8.16:1 | AAA | Lc 88.1 | Fine for body text |
| #64407D text on black | 2.57:1 | Fails | Lc -14.1 | Not readable |
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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F3
oklch(93.6% 0.017 308.3)
-
Step 200
200
#E0D3EA
oklch(88.4% 0.034 310.7)
-
Step 300
300
#CDB6DF
oklch(80.9% 0.062 310.2)
-
Step 400
400
#B38FCE
oklch(70.6% 0.098 310.1)
-
Step 500
500
#A073C2
oklch(63.1% 0.124 309.4)
-
Step 600
600
#8B5AAE
oklch(55.6% 0.135 309.6)
-
Step 700
700
#764995
oklch(49% 0.126 309.9)
-
Step 800
800 (this color)
#64407D
oklch(44% 0.104 310)
-
Step 900
900
#4F3462
oklch(37.7% 0.082 310)
-
Step 950
950
#2E1F39
oklch(27% 0.051 309.8)
#64407D 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) | #324E7F | 0.082 |
| Deuteranopia (no green cones) | #3B507B | 0.076 |
| Tritanopia (no blue cones) | #614A58 | 0.075 |
| Achromatopsia (no color) | #4F4F4F | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64407D
#64407D
oklch(44% 0.104 310)
- #3F5D15
#3F5D15
oklch(43.9% 0.104 129.7)
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 #64407D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
- Rebecca Purple #663399 ΔE 0.058
- Dusk #4E5481 ΔE 0.062
- Blueberry #464196 ΔE 0.067
- Dusty Grape #545775 ΔE 0.072
- Light Eggplant #894585 ΔE 0.074
- Brownish Purple #76424E ΔE 0.088
Use #64407D 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.