#603C9F
Closest named color: Rebecca Purple (#663399). oklch(45.1% 0.154 296.5), rgb(96, 60, 159).
Aa
White text reads best on this color (7.94:1).
About this color
#603C9F is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.154 and its hue 296°. 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 7.94:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #603C9F |
| RGB | rgb(96, 60, 159) |
| HSL | hsl(262, 45%, 43%) |
| OKLCH | oklch(45.1% 0.154 296.5) |
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 #603C9F | 7.94:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #603C9F | 2.64:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #603C9F text on white | 7.94:1 | AAA | Lc 87.1 | Fine for body text |
| #603C9F text on black | 2.64:1 | Fails | Lc -15.0 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DCD3F7
oklch(88.5% 0.05 296.8)
-
Step 300
300
#C6B5F4
oklch(80.9% 0.089 296.7)
-
Step 400
400
#AA8CEF
oklch(70.8% 0.143 296.5)
-
Step 500
500
#966BE9
oklch(63% 0.184 296.5)
-
Step 600
600
#824FD8
oklch(55.7% 0.2 296.4)
-
Step 700
700
#6E3FBB
oklch(49.2% 0.185 296.3)
-
Step 800
800 (this color)
#603C9F
oklch(45.1% 0.154 296.5)
-
Step 900
900
#492F78
oklch(37.6% 0.12 296.6)
-
Step 950
950
#2B1D47
oklch(27.2% 0.076 296.4)
#603C9F 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) | #0051A2 | 0.106 |
| Deuteranopia (no green cones) | #09509D | 0.104 |
| Tritanopia (no blue cones) | #515268 | 0.119 |
| Achromatopsia (no color) | #515151 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603C9F
#603C9F
oklch(45.1% 0.154 296.5)
- #535C00
#535C00
oklch(45.1% 0.103 116.2)
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 #603C9F, 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 0.047
- Dark Slate Blue #483D8B ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Twilight #4E518B ΔE 0.070
- Blurple #5539CC ΔE 0.075
- Chrysanthemum #560BAD ΔE 0.079
Use #603C9F 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.