#603D97
Closest named color: Rebecca Purple (#663399). oklch(44.7% 0.142 298.4), rgb(96, 61, 151).
Aa
White text reads best on this color (8.04:1).
About this color
#603D97 is a dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.142 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.023 away. White text reads best on it, at 8.04:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.61:1 |
| White text | 8.04:1 |
Values
| HEX | #603D97 |
| RGB | rgb(96, 61, 151) |
| HSL | hsl(263, 42%, 42%) |
| OKLCH | oklch(44.7% 0.142 298.4) |
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 #603D97 | 8.04:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #603D97 | 2.61:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #603D97 text on white | 8.04:1 | AAA | Lc 87.5 | Fine for body text |
| #603D97 text on black | 2.61:1 | Fails | Lc -14.6 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#ECE7F8
oklch(93.7% 0.023 299.4)
-
Step 200
200
#DDD3F4
oklch(88.5% 0.046 299.3)
-
Step 300
300
#C7B5F0
oklch(80.8% 0.084 298.5)
-
Step 400
400
#AB8DE8
oklch(70.7% 0.133 298.1)
-
Step 500
500
#986EE1
oklch(63.2% 0.169 298.3)
-
Step 600
600
#8352CE
oklch(55.5% 0.184 298.4)
-
Step 700
700
#6F42B3
oklch(49.1% 0.172 298.1)
-
Step 800
800 (this color)
#603D97
oklch(44.7% 0.142 298.4)
-
Step 900
900
#4A3173
oklch(37.7% 0.11 298.5)
-
Step 950
950
#2B1D44
oklch(27% 0.071 298)
#603D97 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) | #0C509A | 0.103 |
| Deuteranopia (no green cones) | #1D4F95 | 0.095 |
| Tritanopia (no blue cones) | #545064 | 0.109 |
| Achromatopsia (no color) | #505050 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603D97
#603D97
oklch(44.7% 0.142 298.4)
- #4F5C00
#4F5C00
oklch(44.8% 0.105 118.8)
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 #603D97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.023
- Blueberry #464196 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.047
- Twilight #4E518B ΔE 0.062
- Bluey Purple #6241C7 ΔE 0.077
- Dusk #4E5481 ΔE 0.079
- Blue With A Hint Of Purple #533CC6 ΔE 0.079
- Chrysanthemum #560BAD ΔE 0.086
Use #603D97 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.