#604591
Closest named color: Twilight (#4E518B). oklch(45.7% 0.121 297.8), rgb(96, 69, 145).
Aa
White text reads best on this color (7.61:1).
About this color
#604591 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.121 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.044 away. White text reads best on it, at 7.61:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.75:1 |
| White text | 7.61:1 |
Values
| HEX | #604591 |
| RGB | rgb(96, 69, 145) |
| HSL | hsl(261, 36%, 42%) |
| OKLCH | oklch(45.7% 0.121 297.8) |
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 #604591 | 7.61:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #604591 | 2.75:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #604591 text on white | 7.61:1 | AAA | Lc 86.3 | Fine for body text |
| #604591 text on black | 2.75:1 | Fails | Lc -15.8 | 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 800.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DCD4F0
oklch(88.5% 0.039 298.7)
-
Step 300
300
#C6B7E9
oklch(80.9% 0.071 298.5)
-
Step 400
400
#A991DE
oklch(70.7% 0.113 297.8)
-
Step 500
500
#9573D5
oklch(63.1% 0.146 298.1)
-
Step 600
600
#805AC2
oklch(55.6% 0.157 298)
-
Step 700
700
#6C49A8
oklch(49.1% 0.147 297.7)
-
Step 800
800 (this color)
#604591
oklch(45.7% 0.121 297.8)
-
Step 900
900
#48346D
oklch(37.6% 0.096 297.8)
-
Step 950
950
#2A1F40
oklch(27% 0.061 297.6)
#604591 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) | #295494 | 0.081 |
| Deuteranopia (no green cones) | #30538F | 0.075 |
| Tritanopia (no blue cones) | #555464 | 0.096 |
| Achromatopsia (no color) | #545454 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604591
#604591
oklch(45.7% 0.121 297.8)
- #535E00
#535E00
oklch(45.6% 0.106 117.4)
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 #604591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.044
- Rebecca Purple #663399 ΔE 0.044
- Blueberry #464196 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.049
- Dusk #4E5481 ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.075
- Dusky Blue #475F94 ΔE 0.075
- Dusty Grape #545775 ΔE 0.077
Use #604591 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.