#64589C
Closest named color: Dusky Blue (#475F94). oklch(50.3% 0.106 290.1), rgb(100, 88, 156).
Aa
White text reads best on this color (6.14:1).
About this color
#64589C is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.106 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.047 away. White text reads best on it, at 6.14:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #64589C |
| RGB | rgb(100, 88, 156) |
| HSL | hsl(251, 28%, 48%) |
| OKLCH | oklch(50.3% 0.106 290.1) |
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 #64589C | 6.14:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #64589C | 3.41:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #64589C text on white | 6.14:1 | AA | Lc 80.6 | Fine for body text |
| #64589C text on black | 3.41:1 | AA large text | Lc -21.3 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D6EB
oklch(88.4% 0.029 290.2)
-
Step 300
300
#C0BCE0
oklch(81% 0.05 290.3)
-
Step 400
400
#A098D1
oklch(70.7% 0.083 290.6)
-
Step 500
500
#897EC5
oklch(63.2% 0.106 290.1)
-
Step 600
600
#7366B1
oklch(55.6% 0.114 290.1)
-
Step 700
700 (this color)
#64589C
oklch(50.3% 0.106 290.1)
-
Step 800
800
#4F457B
oklch(42.6% 0.088 290.7)
-
Step 900
900
#413B63
oklch(37.7% 0.067 289.6)
-
Step 950
950
#26233A
oklch(27.1% 0.042 289.2)
#64589C 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) | #42639F | 0.052 |
| Deuteranopia (no green cones) | #42609A | 0.050 |
| Tritanopia (no blue cones) | #566572 | 0.089 |
| Achromatopsia (no color) | #626262 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64589C
#64589C
oklch(50.3% 0.106 290.1)
- #68690A
#68690A
oklch(50.4% 0.107 110.4)
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 #64589C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.047
- Twilight #4E518B ΔE 0.048
- Dusk #4E5481 ΔE 0.057
- Muted Purple #805B87 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.060
- Iris #6258C4 ΔE 0.063
- French Blue #436BAD ΔE 0.064
- Dusty Purple #825F87 ΔE 0.067
Use #64589C 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.