#604FA3
Closest named color: Twilight (#4E518B). oklch(48.6% 0.13 290), rgb(96, 79, 163).
Aa
White text reads best on this color (6.67:1).
About this color
#604FA3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.130 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.050 away. White text reads best on it, at 6.67:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.14:1 |
| White text | 6.67:1 |
Values
| HEX | #604FA3 |
| RGB | rgb(96, 79, 163) |
| HSL | hsl(252, 35%, 47%) |
| OKLCH | oklch(48.6% 0.13 290) |
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 #604FA3 | 6.67:1 | AA | Lc -87.8 | Fine for body text |
| Black text on #604FA3 | 3.14:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #604FA3 text on white | 6.67:1 | AA | Lc 82.8 | Fine for body text |
| #604FA3 text on black | 3.14:1 | AA large text | Lc -19.1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6EF
oklch(88.5% 0.034 289.4)
-
Step 300
300
#BFBAE7
oklch(80.8% 0.063 290)
-
Step 400
400
#9F96DB
oklch(70.7% 0.1 289.6)
-
Step 500
500
#897AD2
oklch(63.1% 0.13 290)
-
Step 600
600
#7462BF
oklch(55.7% 0.14 290)
-
Step 700
700 (this color)
#604FA3
oklch(48.6% 0.13 290)
-
Step 800
800
#4F4285
oklch(42.6% 0.108 290)
-
Step 900
900
#41386B
oklch(37.6% 0.085 289.8)
-
Step 950
950
#26213F
oklch(26.9% 0.055 289.9)
#604FA3 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) | #2C5EA6 | 0.072 |
| Deuteranopia (no green cones) | #2D5AA1 | 0.069 |
| Tritanopia (no blue cones) | #4E6071 | 0.108 |
| Achromatopsia (no color) | #5C5C5C | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604FA3
#604FA3
oklch(48.6% 0.13 290)
- #646400
#646400
oklch(48.7% 0.106 109.8)
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 #604FA3, closest first.
No curated palette has a color within ΔE 0.04 of #604FA3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.050
- Iris #6258C4 ΔE 0.055
- Blueberry #464196 ΔE 0.061
- Dusky Blue #475F94 ΔE 0.062
- Rebecca Purple #663399 ΔE 0.064
- Dusk #4E5481 ΔE 0.066
- Bluey Purple #6241C7 ΔE 0.067
- Denim Blue #3B5B92 ΔE 0.067
Use #604FA3 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.