#5F3481
Closest named color: Rebecca Purple (#663399). oklch(41.6% 0.128 307.5), rgb(95, 52, 129).
Aa
White text reads best on this color (9.15:1).
About this color
#5F3481 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.128 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.041 away. White text reads best on it, at 9.15:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #5F3481 |
| RGB | rgb(95, 52, 129) |
| HSL | hsl(274, 43%, 35%) |
| OKLCH | oklch(41.6% 0.128 307.5) |
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 #5F3481 | 9.15:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #5F3481 | 2.29:1 | Fails | Lc 13.3 | Not readable |
| #5F3481 text on white | 9.15:1 | AAA | Lc 90.7 | Preferred for body text |
| #5F3481 text on black | 2.29:1 | Fails | Lc -11.6 | 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
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E0D2EF
oklch(88.4% 0.042 307.2)
-
Step 300
300
#CEB4E7
oklch(80.9% 0.076 307.8)
-
Step 400
400
#B58CDB
oklch(70.8% 0.12 307.4)
-
Step 500
500
#A36DD0
oklch(63.2% 0.153 307.8)
-
Step 600
600
#8E52BD
oklch(55.6% 0.167 307.7)
-
Step 700
700
#7942A3
oklch(49.1% 0.155 307.8)
-
Step 800
800 (this color)
#5F3481
oklch(41.6% 0.128 307.5)
-
Step 900
900
#50316A
oklch(37.8% 0.099 307.4)
-
Step 950
950
#2F1D3E
oklch(27% 0.063 307.9)
#5F3481 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) | #174683 | 0.107 |
| Deuteranopia (no green cones) | #28487F | 0.095 |
| Tritanopia (no blue cones) | #5A4355 | 0.093 |
| Achromatopsia (no color) | #484848 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F3481
#5F3481
oklch(41.6% 0.128 307.5)
- #3B5600
#3B5600
oklch(41.6% 0.108 127.6)
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 #5F3481, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.041
- Dark Slate Blue #483D8B ΔE 0.047
- Blueberry #464196 ΔE 0.060
- Twilight #4E518B ΔE 0.077
- Purple #800080 ΔE 0.087
- Dusk #4E5481 ΔE 0.087
- Indigo #4B0082 ΔE 0.094
- Light Eggplant #894585 ΔE 0.096
Use #5F3481 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.