#645192
Closest named color: Twilight (#4E518B). oklch(48.4% 0.103 295.8), rgb(100, 81, 146).
Aa
White text reads best on this color (6.70:1).
About this color
#645192 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.103 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.037 away. White text reads best on it, at 6.70:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.13:1 |
| White text | 6.70:1 |
Values
| HEX | #645192 |
| RGB | rgb(100, 81, 146) |
| HSL | hsl(258, 29%, 45%) |
| OKLCH | oklch(48.4% 0.103 295.8) |
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 #645192 | 6.70:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #645192 | 3.13:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #645192 text on white | 6.70:1 | AA | Lc 83.0 | Fine for body text |
| #645192 text on black | 3.13:1 | AA large text | Lc -19.0 | 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
#F6F5FA
oklch(97.2% 0.007 295.5)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#DAD6EA
oklch(88.5% 0.028 295)
-
Step 300
300
#C3BBDE
oklch(81% 0.049 295.7)
-
Step 400
400
#A497CD
oklch(70.7% 0.079 295.4)
-
Step 500
500
#8F7CC0
oklch(63.1% 0.102 296.2)
-
Step 600
600
#7965AD
oklch(55.7% 0.111 295.4)
-
Step 700
700 (this color)
#645192
oklch(48.4% 0.103 295.8)
-
Step 800
800
#534478
oklch(42.6% 0.085 295.8)
-
Step 900
900
#453A61
oklch(37.8% 0.066 296)
-
Step 950
950
#282239
oklch(27% 0.043 295.4)
#645192 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) | #3D5C94 | 0.060 |
| Deuteranopia (no green cones) | #415B90 | 0.056 |
| Tritanopia (no blue cones) | #5A5D6A | 0.084 |
| Achromatopsia (no color) | #5C5C5C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645192
#645192
oklch(48.4% 0.103 295.8)
- #5C6510
#5C6510
oklch(48.3% 0.103 115.9)
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 #645192, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.037
- Dusk #4E5481 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.054
- Dusty Grape #545775 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.062
- Muted Purple #805B87 ΔE 0.063
- Blueberry #464196 ΔE 0.070
- Light Eggplant #894585 ΔE 0.071
Use #645192 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.