#604E81
Closest named color: Dusk (#4E5481). oklch(46.4% 0.083 299.4), rgb(96, 78, 129).
Aa
White text reads best on this color (7.23:1).
About this color
#604E81 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.083 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.032 away. White text reads best on it, at 7.23:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #604E81 |
| RGB | rgb(96, 78, 129) |
| HSL | hsl(261, 25%, 41%) |
| OKLCH | oklch(46.4% 0.083 299.4) |
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 #604E81 | 7.23:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #604E81 | 2.90:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #604E81 text on white | 7.23:1 | AAA | Lc 85.0 | Fine for body text |
| #604E81 text on black | 2.90:1 | Fails | Lc -17.0 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F1
oklch(93.6% 0.012 301.3)
-
Step 200
200
#DBD6E6
oklch(88.5% 0.022 300.2)
-
Step 300
300
#C4BBD7
oklch(80.8% 0.04 300.2)
-
Step 400
400
#A698C4
oklch(70.7% 0.065 299.3)
-
Step 500
500
#907EB4
oklch(63% 0.082 299.3)
-
Step 600
600
#7B67A0
oklch(55.6% 0.089 299.6)
-
Step 700
700 (this color)
#604E81
oklch(46.4% 0.083 299.4)
-
Step 800
800
#54466F
oklch(42.6% 0.068 299.2)
-
Step 900
900
#463B5A
oklch(37.7% 0.054 300.1)
-
Step 950
950
#292335
oklch(27.1% 0.034 299.4)
#604E81 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) | #415783 | 0.050 |
| Deuteranopia (no green cones) | #445780 | 0.048 |
| Tritanopia (no blue cones) | #5A5661 | 0.065 |
| Achromatopsia (no color) | #575757 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604E81
#604E81
oklch(46.4% 0.083 299.4)
- #546025
#546025
oklch(46.5% 0.084 119.4)
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 #604E81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.032
- Twilight #4E518B ΔE 0.032
- Dusty Grape #545775 ΔE 0.041
- Dusky Blue #475F94 ΔE 0.058
- YInMn Blue #415A77 ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.069
- Muted Purple #805B87 ΔE 0.069
Use #604E81 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.