#604C8C
Closest named color: Twilight (#4E518B). oklch(46.6% 0.103 296.6), rgb(96, 76, 140).
Aa
White text reads best on this color (7.21:1).
About this color
#604C8C is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.103 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.031 away. White text reads best on it, at 7.21:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.90:1 |
| White text | 7.21:1 |
Values
| HEX | #604C8C |
| RGB | rgb(96, 76, 140) |
| HSL | hsl(259, 30%, 42%) |
| OKLCH | oklch(46.6% 0.103 296.6) |
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 #604C8C | 7.21:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #604C8C | 2.90:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #604C8C text on white | 7.21:1 | AAA | Lc 84.9 | Fine for body text |
| #604C8C text on black | 2.90:1 | Fails | Lc -17.1 | 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
#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
#A597CD
oklch(70.8% 0.079 296.2)
-
Step 500
500
#907CC0
oklch(63.1% 0.102 296.9)
-
Step 600
600
#7A64AC
oklch(55.5% 0.111 296.7)
-
Step 700
700 (this color)
#604C8C
oklch(46.6% 0.103 296.6)
-
Step 800
800
#544478
oklch(42.7% 0.086 296.8)
-
Step 900
900
#453A61
oklch(37.8% 0.066 296)
-
Step 950
950
#282239
oklch(27% 0.043 295.4)
#604C8C 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) | #38578E | 0.061 |
| Deuteranopia (no green cones) | #3C568A | 0.058 |
| Tritanopia (no blue cones) | #575865 | 0.082 |
| Achromatopsia (no color) | #575757 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604C8C
#604C8C
oklch(46.6% 0.103 296.6)
- #57600B
#57600B
oklch(46.6% 0.102 116.1)
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 #604C8C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.031
- Dusk #4E5481 ΔE 0.042
- Dusty Grape #545775 ΔE 0.058
- Blueberry #464196 ΔE 0.059
- Dusky Blue #475F94 ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.062
- Rebecca Purple #663399 ΔE 0.065
Use #604C8C 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.