#604DA3
Closest named color: Twilight (#4E518B). oklch(48.3% 0.134 290.7), rgb(96, 77, 163).
Aa
White text reads best on this color (6.80:1).
About this color
#604DA3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.134 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.051 away. White text reads best on it, at 6.80:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.08:1 |
| White text | 6.80:1 |
Values
| HEX | #604DA3 |
| RGB | rgb(96, 77, 163) |
| HSL | hsl(253, 36%, 47%) |
| OKLCH | oklch(48.3% 0.134 290.7) |
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 #604DA3 | 6.80:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #604DA3 | 3.08:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #604DA3 text on white | 6.80:1 | AA | Lc 83.2 | Fine for body text |
| #604DA3 text on black | 3.08:1 | AA large text | Lc -18.7 | 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
#D8D6F0
oklch(88.6% 0.036 289.2)
-
Step 300
300
#C0BAE8
oklch(80.9% 0.065 290.9)
-
Step 400
400
#A095DC
oklch(70.6% 0.103 290.6)
-
Step 500
500
#8A79D3
oklch(63% 0.133 290.8)
-
Step 600
600
#7561C0
oklch(55.7% 0.143 290.7)
-
Step 700
700 (this color)
#604DA3
oklch(48.3% 0.134 290.7)
-
Step 800
800
#504186
oklch(42.6% 0.111 290.9)
-
Step 900
900
#42386B
oklch(37.7% 0.085 290.7)
-
Step 950
950
#27213F
oklch(27% 0.055 291.5)
#604DA3 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) | #285CA6 | 0.075 |
| Deuteranopia (no green cones) | #2A59A1 | 0.073 |
| Tritanopia (no blue cones) | #4E5F70 | 0.110 |
| Achromatopsia (no color) | #5B5B5B | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604DA3
#604DA3
oklch(48.3% 0.134 290.7)
- #626300
#626300
oklch(48.3% 0.106 110.5)
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 #604DA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.051
- Iris #6258C4 ΔE 0.056
- Blueberry #464196 ΔE 0.058
- Rebecca Purple #663399 ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.064
- Dusky Blue #475F94 ΔE 0.066
- Dusk #4E5481 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.070
Use #604DA3 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.