#603668
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.095 321), rgb(96, 54, 104).
Aa
White text reads best on this color (9.43:1).
About this color
#603668 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.095 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.072 away. White text reads best on it, at 9.43:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.43:1 |
Values
| HEX | #603668 |
| RGB | rgb(96, 54, 104) |
| HSL | hsl(290, 32%, 31%) |
| OKLCH | oklch(40.6% 0.095 321) |
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 #603668 | 9.43:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #603668 | 2.22:1 | Fails | Lc 12.4 | Not readable |
| #603668 text on white | 9.43:1 | AAA | Lc 91.6 | Preferred for body text |
| #603668 text on black | 2.22:1 | Fails | Lc -10.8 | Not readable |
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 800.
-
Step 50
50
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EFE7F0
oklch(93.7% 0.015 322.3)
-
Step 200
200
#E3D3E6
oklch(88.5% 0.031 320.9)
-
Step 300
300
#D2B5D7
oklch(80.9% 0.057 321.3)
-
Step 400
400
#BA8EC2
oklch(70.6% 0.089 321.2)
-
Step 500
500
#A972B3
oklch(63.2% 0.113 321.2)
-
Step 600
600
#94599F
oklch(55.7% 0.124 321.1)
-
Step 700
700
#7E4888
oklch(49.1% 0.116 321.2)
-
Step 800
800 (this color)
#603668
oklch(40.6% 0.095 321)
-
Step 900
900
#533459
oklch(37.7% 0.073 320.9)
-
Step 950
950
#311E34
oklch(26.9% 0.048 321.9)
#603668 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) | #2F436A | 0.086 |
| Deuteranopia (no green cones) | #3B4867 | 0.077 |
| Tritanopia (no blue cones) | #613C4A | 0.058 |
| Achromatopsia (no color) | #464646 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603668
#603668
oklch(40.6% 0.095 321)
- #295522
#295522
oklch(40.5% 0.094 141)
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 #603668, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.072
- Purple Brown #673A3F ΔE 0.075
- Grape Purple #5D1451 ΔE 0.077
- Brownish Purple #76424E ΔE 0.078
- Rebecca Purple #663399 ΔE 0.083
- Velvet #750851 ΔE 0.084
- Rich Purple #720058 ΔE 0.086
- Twilight #4E518B ΔE 0.086
Use #603668 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.