#604D8F
Closest named color: Twilight (#4E518B). oklch(47% 0.105 295.3), rgb(96, 77, 143).
Aa
White text reads best on this color (7.10:1).
About this color
#604D8F is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.105 and its hue 295°. 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 7.10:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.95:1 |
| White text | 7.10:1 |
Values
| HEX | #604D8F |
| RGB | rgb(96, 77, 143) |
| HSL | hsl(257, 30%, 43%) |
| OKLCH | oklch(47% 0.105 295.3) |
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 #604D8F | 7.10:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #604D8F | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #604D8F text on white | 7.10:1 | AAA | Lc 84.5 | Fine for body text |
| #604D8F text on black | 2.95:1 | Fails | Lc -17.5 | 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
#F6F5FA
oklch(97.2% 0.007 295.5)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#DAD6EA
oklch(88.5% 0.028 295)
-
Step 300
300
#C3BBDF
oklch(81% 0.051 295.4)
-
Step 400
400
#A497CE
oklch(70.7% 0.08 295.1)
-
Step 500
500
#8E7CC2
oklch(63.1% 0.105 295)
-
Step 600
600
#7964AE
oklch(55.6% 0.114 295.5)
-
Step 700
700 (this color)
#604D8F
oklch(47% 0.105 295.3)
-
Step 800
800
#534479
oklch(42.7% 0.087 295.5)
-
Step 900
900
#443A62
oklch(37.7% 0.068 294.4)
-
Step 950
950
#282239
oklch(27% 0.043 295.4)
#604D8F 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) | #385991 | 0.062 |
| Deuteranopia (no green cones) | #3B578D | 0.058 |
| Tritanopia (no blue cones) | #565967 | 0.084 |
| Achromatopsia (no color) | #585858 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604D8F
#604D8F
oklch(47% 0.105 295.3)
- #596104
#596104
oklch(47% 0.105 115.3)
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 #604D8F, 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 0.043
- Dusky Blue #475F94 ΔE 0.057
- Blueberry #464196 ΔE 0.059
- Dusty Grape #545775 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.062
- Rebecca Purple #663399 ΔE 0.065
Use #604D8F 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.