#5F398B
Closest named color: Rebecca Purple (#663399). oklch(43.1% 0.133 302.6), rgb(95, 57, 139).
Aa
White text reads best on this color (8.59:1).
About this color
#5F398B is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.133 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 0.029 away. White text reads best on it, at 8.59:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.44:1 |
| White text | 8.59:1 |
Values
| HEX | #5F398B |
| RGB | rgb(95, 57, 139) |
| HSL | hsl(268, 42%, 38%) |
| OKLCH | oklch(43.1% 0.133 302.6) |
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 #5F398B | 8.59:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #5F398B | 2.44:1 | Fails | Lc 14.8 | Not readable |
| #5F398B text on white | 8.59:1 | AAA | Lc 89.2 | Fine for body text |
| #5F398B text on black | 2.44:1 | Fails | Lc -13.0 | 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
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DED3F1
oklch(88.5% 0.042 302.2)
-
Step 300
300
#CAB5EB
oklch(80.9% 0.078 302.4)
-
Step 400
400
#B08DE0
oklch(70.7% 0.123 302.8)
-
Step 500
500
#9D6ED8
oklch(63.2% 0.159 302.6)
-
Step 600
600
#8853C5
oklch(55.6% 0.173 302.6)
-
Step 700
700
#7343AA
oklch(49% 0.16 302.3)
-
Step 800
800 (this color)
#5F398B
oklch(43.1% 0.133 302.6)
-
Step 900
900
#4D316E
oklch(37.7% 0.104 303)
-
Step 950
950
#2D1D41
oklch(27% 0.067 302.7)
#5F398B 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) | #154B8E | 0.102 |
| Deuteranopia (no green cones) | #254C89 | 0.093 |
| Tritanopia (no blue cones) | #57495C | 0.099 |
| Achromatopsia (no color) | #4C4C4C | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F398B
#5F398B
oklch(43.1% 0.133 302.6)
- #465900
#465900
oklch(43.2% 0.106 122.8)
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 #5F398B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.049
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.079
- Chrysanthemum #560BAD ΔE 0.091
- Light Eggplant #894585 ΔE 0.091
- Purple #800080 ΔE 0.094
Use #5F398B 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.