#5F3989
Closest named color: Rebecca Purple (#663399). oklch(43% 0.13 303.3), rgb(95, 57, 137).
Aa
White text reads best on this color (8.63:1).
About this color
#5F3989 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.130 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 0.032 away. White text reads best on it, at 8.63:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #5F3989 |
| RGB | rgb(95, 57, 137) |
| HSL | hsl(268, 41%, 38%) |
| OKLCH | oklch(43% 0.13 303.3) |
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 #5F3989 | 8.63:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #5F3989 | 2.43:1 | Fails | Lc 14.7 | Not readable |
| #5F3989 text on white | 8.63:1 | AAA | Lc 89.3 | Fine for body text |
| #5F3989 text on black | 2.43:1 | Fails | Lc -12.9 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3F1
oklch(88.6% 0.043 303.7)
-
Step 300
300
#CAB5EA
oklch(80.9% 0.077 302.8)
-
Step 400
400
#B08DDF
oklch(70.7% 0.122 303)
-
Step 500
500
#9D6ED6
oklch(63% 0.157 303.1)
-
Step 600
600
#8954C3
oklch(55.7% 0.169 303.4)
-
Step 700
700
#7443A8
oklch(49% 0.158 303.4)
-
Step 800
800 (this color)
#5F3989
oklch(43% 0.13 303.3)
-
Step 900
900
#4D316D
oklch(37.6% 0.102 303.4)
-
Step 950
950
#2D1D40
oklch(26.9% 0.065 303.4)
#5F3989 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) | #184B8C | 0.101 |
| Deuteranopia (no green cones) | #274C87 | 0.092 |
| Tritanopia (no blue cones) | #57495B | 0.098 |
| Achromatopsia (no color) | #4C4C4C | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F3989
#5F3989
oklch(43% 0.13 303.3)
- #455800
#455800
oklch(42.9% 0.105 122.9)
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 #5F3989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.065
- Dusk #4E5481 ΔE 0.078
- Light Eggplant #894585 ΔE 0.090
- Chrysanthemum #560BAD ΔE 0.093
- Purple #800080 ΔE 0.094
Use #5F3989 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.