#603996
Closest named color: Rebecca Purple (#663399). oklch(44% 0.147 299.7), rgb(96, 57, 150).
Aa
White text reads best on this color (8.32:1).
About this color
#603996 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.147 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.017 away. White text reads best on it, at 8.32:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #603996 |
| RGB | rgb(96, 57, 150) |
| HSL | hsl(265, 45%, 41%) |
| OKLCH | oklch(44% 0.147 299.7) |
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 #603996 | 8.32:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #603996 | 2.52:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #603996 text on white | 8.32:1 | AAA | Lc 88.3 | Fine for body text |
| #603996 text on black | 2.52:1 | Fails | Lc -13.9 | 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
#ECE7F9
oklch(93.7% 0.025 298.6)
-
Step 200
200
#DDD3F5
oklch(88.5% 0.047 298.9)
-
Step 300
300
#C8B5F1
oklch(81% 0.086 299)
-
Step 400
400
#AE8BE9
oklch(70.6% 0.138 300.1)
-
Step 500
500
#9B6BE2
oklch(63.1% 0.176 300)
-
Step 600
600
#8650D0
oklch(55.6% 0.19 299.6)
-
Step 700
700
#723FB4
oklch(49.1% 0.177 299.9)
-
Step 800
800 (this color)
#603996
oklch(44% 0.147 299.7)
-
Step 900
900
#4C3074
oklch(37.8% 0.113 300)
-
Step 950
950
#2C1D44
oklch(27.1% 0.071 299.4)
#603996 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) | #004E99 | 0.110 |
| Deuteranopia (no green cones) | #174D94 | 0.102 |
| Tritanopia (no blue cones) | #544D62 | 0.112 |
| Achromatopsia (no color) | #4E4E4E | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603996
#603996
oklch(44% 0.147 299.7)
- #4C5A00
#4C5A00
oklch(44% 0.104 119.6)
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 #603996, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.017
- Dark Slate Blue #483D8B ΔE 0.047
- Blueberry #464196 ΔE 0.047
- Twilight #4E518B ΔE 0.070
- Chrysanthemum #560BAD ΔE 0.080
- Bluey Purple #6241C7 ΔE 0.080
- Blue With A Hint Of Purple #533CC6 ΔE 0.081
- Grape #7209B7 ΔE 0.083
Use #603996 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.