#645396
Closest named color: Twilight (#4E518B). oklch(49% 0.106 293.8), rgb(100, 83, 150).
Aa
White text reads best on this color (6.52:1).
About this color
#645396 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.106 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.040 away. White text reads best on it, at 6.52:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.21:1 |
| White text | 6.52:1 |
Values
| HEX | #645396 |
| RGB | rgb(100, 83, 150) |
| HSL | hsl(255, 29%, 46%) |
| OKLCH | oklch(49% 0.106 293.8) |
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 #645396 | 6.52:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #645396 | 3.21:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #645396 text on white | 6.52:1 | AA | Lc 82.2 | Fine for body text |
| #645396 text on black | 3.21:1 | AA large text | Lc -19.7 | 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
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#DAD6EB
oklch(88.6% 0.029 294.5)
-
Step 300
300
#C2BBDF
oklch(80.9% 0.051 294.2)
-
Step 400
400
#A397CF
oklch(70.7% 0.082 294)
-
Step 500
500
#8D7DC3
oklch(63.2% 0.104 293.7)
-
Step 600
600
#7765AF
oklch(55.6% 0.113 293.6)
-
Step 700
700 (this color)
#645396
oklch(49% 0.106 293.8)
-
Step 800
800
#52447A
oklch(42.6% 0.088 294.3)
-
Step 900
900
#443A62
oklch(37.7% 0.068 294.4)
-
Step 950
950
#27223A
oklch(26.9% 0.044 292.7)
#645396 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) | #3E5E98 | 0.058 |
| Deuteranopia (no green cones) | #405D94 | 0.056 |
| Tritanopia (no blue cones) | #595F6D | 0.085 |
| Achromatopsia (no color) | #5E5E5E | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645396
#645396
oklch(49% 0.106 293.8)
- #60660B
#60660B
oklch(48.9% 0.105 113.8)
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 #645396, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.040
- Dusk #4E5481 ΔE 0.050
- Dusky Blue #475F94 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.061
- Muted Purple #805B87 ΔE 0.062
- Dusty Grape #545775 ΔE 0.064
- Dusty Purple #825F87 ΔE 0.071
- Iris #6258C4 ΔE 0.072
Use #645396 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.