#603F86
Closest named color: Rebecca Purple (#663399). oklch(43.9% 0.117 303.4), rgb(96, 63, 134).
Aa
White text reads best on this color (8.22:1).
About this color
#603F86 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.117 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.044 away. White text reads best on it, at 8.22:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #603F86 |
| RGB | rgb(96, 63, 134) |
| HSL | hsl(268, 36%, 39%) |
| OKLCH | oklch(43.9% 0.117 303.4) |
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 #603F86 | 8.22:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #603F86 | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #603F86 text on white | 8.22:1 | AAA | Lc 88.2 | Fine for body text |
| #603F86 text on black | 2.55:1 | Fails | Lc -14.0 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DED4EE
oklch(88.6% 0.037 303.1)
-
Step 300
300
#C9B6E5
oklch(80.8% 0.068 303.3)
-
Step 400
400
#AF8FD8
oklch(70.6% 0.109 303.9)
-
Step 500
500
#9B72CE
oklch(63.1% 0.14 303.2)
-
Step 600
600
#8659BB
oklch(55.7% 0.151 303)
-
Step 700
700
#7248A1
oklch(49.1% 0.141 303.4)
-
Step 800
800 (this color)
#603F86
oklch(43.9% 0.117 303.4)
-
Step 900
900
#4C3469
oklch(37.8% 0.091 303.2)
-
Step 950
950
#2C1F3D
oklch(27% 0.056 302.8)
#603F86 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) | #284E88 | 0.086 |
| Deuteranopia (no green cones) | #324F84 | 0.078 |
| Tritanopia (no blue cones) | #594C5C | 0.088 |
| Achromatopsia (no color) | #4F4F4F | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603F86
#603F86
oklch(43.9% 0.117 303.4)
- #475B00
#475B00
oklch(43.8% 0.108 123.1)
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 #603F86, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.045
- Blueberry #464196 ΔE 0.052
- Twilight #4E518B ΔE 0.053
- Dusk #4E5481 ΔE 0.064
- Dusty Grape #545775 ΔE 0.079
- Light Eggplant #894585 ΔE 0.081
- Denim Blue #3B5B92 ΔE 0.087
Use #603F86 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.