#604C77
Closest named color: Dusk (#4E5481). oklch(45.5% 0.072 305), rgb(96, 76, 119).
Aa
White text reads best on this color (7.50:1).
About this color
#604C77 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.072 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.035 away. White text reads best on it, at 7.50:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #604C77 |
| RGB | rgb(96, 76, 119) |
| HSL | hsl(268, 22%, 38%) |
| OKLCH | oklch(45.5% 0.072 305) |
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 #604C77 | 7.50:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #604C77 | 2.79:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #604C77 text on white | 7.50:1 | AAA | Lc 86.0 | Fine for body text |
| #604C77 text on black | 2.79:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F1
oklch(93.7% 0.013 306)
-
Step 200
200
#DCD6E6
oklch(88.6% 0.023 302.9)
-
Step 300
300
#C7BAD7
oklch(80.9% 0.043 305.7)
-
Step 400
400
#AA96C3
oklch(70.6% 0.068 304.9)
-
Step 500
500
#967CB4
oklch(63.1% 0.087 305.3)
-
Step 600
600
#80659F
oklch(55.6% 0.093 305)
-
Step 700
700
#6C5388
oklch(49% 0.087 305.1)
-
Step 800
800 (this color)
#604C77
oklch(45.5% 0.072 305)
-
Step 900
900
#493A5A
oklch(37.8% 0.056 305.3)
-
Step 950
950
#2A2235
oklch(27% 0.036 303.4)
#604C77 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) | #435479 | 0.048 |
| Deuteranopia (no green cones) | #475576 | 0.045 |
| Tritanopia (no blue cones) | #5D525C | 0.053 |
| Achromatopsia (no color) | #555555 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604C77
#604C77
oklch(45.5% 0.072 305)
- #4D5E2F
#4D5E2F
oklch(45.6% 0.073 125.5)
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 #604C77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.035
- Dusty Grape #545775 ΔE 0.037
- Twilight #4E518B ΔE 0.042
- YInMn Blue #415A77 ΔE 0.059
- Dusky Blue #475F94 ΔE 0.069
- Denim Blue #3B5B92 ΔE 0.070
- Dark Slate Blue #483D8B ΔE 0.073
- Brownish Purple #76424E ΔE 0.074
Use #604C77 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.