#604D88
Closest named color: Twilight (#4E518B). oklch(46.6% 0.095 297.4), rgb(96, 77, 136).
Aa
White text reads best on this color (7.20:1).
About this color
#604D88 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.095 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.030 away. White text reads best on it, at 7.20:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #604D88 |
| RGB | rgb(96, 77, 136) |
| HSL | hsl(259, 28%, 42%) |
| OKLCH | oklch(46.6% 0.095 297.4) |
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 #604D88 | 7.20:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #604D88 | 2.91:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #604D88 text on white | 7.20:1 | AAA | Lc 84.9 | Fine for body text |
| #604D88 text on black | 2.91:1 | 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
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DBD6E8
oklch(88.5% 0.025 298.6)
-
Step 300
300
#C3BBDB
oklch(80.9% 0.045 296.8)
-
Step 400
400
#A597C9
oklch(70.6% 0.073 297.3)
-
Step 500
500
#907DBB
oklch(63.1% 0.094 297.7)
-
Step 600
600
#7A65A8
oklch(55.5% 0.104 297.3)
-
Step 700
700 (this color)
#604D88
oklch(46.6% 0.095 297.4)
-
Step 800
800
#544575
oklch(42.7% 0.079 297.3)
-
Step 900
900
#453A5E
oklch(37.6% 0.062 297.4)
-
Step 950
950
#282237
oklch(26.9% 0.039 296.8)
#604D88 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) | #3C578A | 0.056 |
| Deuteranopia (no green cones) | #405787 | 0.053 |
| Tritanopia (no blue cones) | #585764 | 0.075 |
| Achromatopsia (no color) | #575757 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604D88
#604D88
oklch(46.6% 0.095 297.4)
- #566018
#566018
oklch(46.5% 0.095 117.1)
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 #604D88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.030
- Dusk #4E5481 ΔE 0.037
- Dusty Grape #545775 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.058
- Denim Blue #3B5B92 ΔE 0.061
- Blueberry #464196 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.063
- YInMn Blue #415A77 ΔE 0.068
Use #604D88 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.