#603D66
Closest named color: Brownish Purple (#76424E). oklch(41.7% 0.079 321.5), rgb(96, 61, 102).
Aa
White text reads best on this color (8.91:1).
About this color
#603D66 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.079 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.064 away. White text reads best on it, at 8.91:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #603D66 |
| RGB | rgb(96, 61, 102) |
| HSL | hsl(291, 25%, 32%) |
| OKLCH | oklch(41.7% 0.079 321.5) |
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 #603D66 | 8.91:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #603D66 | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #603D66 text on white | 8.91:1 | AAA | Lc 90.3 | Preferred for body text |
| #603D66 text on black | 2.35:1 | Fails | Lc -12.0 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7EF
oklch(93.6% 0.013 321.9)
-
Step 200
200
#E1D4E3
oklch(88.5% 0.025 321.7)
-
Step 300
300
#CFB7D3
oklch(80.8% 0.047 321.4)
-
Step 400
400
#B692BD
oklch(70.7% 0.073 320.8)
-
Step 500
500
#A476AC
oklch(63.1% 0.095 321.4)
-
Step 600
600
#8F5E97
oklch(55.6% 0.103 321.8)
-
Step 700
700
#794D81
oklch(49% 0.096 321.3)
-
Step 800
800 (this color)
#603D66
oklch(41.7% 0.079 321.5)
-
Step 900
900
#513655
oklch(37.7% 0.062 322.2)
-
Step 950
950
#2F2032
oklch(27% 0.039 320.7)
#603D66 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) | #384768 | 0.070 |
| Deuteranopia (no green cones) | #414B65 | 0.063 |
| Tritanopia (no blue cones) | #61424C | 0.050 |
| Achromatopsia (no color) | #4A4A4A | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603D66
#603D66
oklch(41.7% 0.079 321.5)
- #32572D
#32572D
oklch(41.7% 0.08 141.4)
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 #603D66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.064
- Purple Brown #673A3F ΔE 0.065
- Dusk #4E5481 ΔE 0.072
- Dusty Grape #545775 ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.076
- Twilight #4E518B ΔE 0.076
- YInMn Blue #415A77 ΔE 0.090
- Blueberry #464196 ΔE 0.091
Use #603D66 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.