#5B429E
Closest named color: Rebecca Purple (#663399). oklch(45.5% 0.143 292.3), rgb(91, 66, 158).
Aa
White text reads best on this color (7.72:1).
About this color
#5B429E is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.143 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.037 away. White text reads best on it, at 7.72:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.71:1 |
| White text | 7.72:1 |
Values
| HEX | #5B429E |
| RGB | rgb(91, 66, 158) |
| HSL | hsl(256, 41%, 44%) |
| OKLCH | oklch(45.5% 0.143 292.3) |
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 #5B429E | 7.72:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #5B429E | 2.71:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #5B429E text on white | 7.72:1 | AAA | Lc 86.5 | Fine for body text |
| #5B429E text on black | 2.71:1 | Fails | Lc -15.6 | Dividers and decoration only |
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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F6
oklch(88.5% 0.047 292.2)
-
Step 300
300
#C1B7F3
oklch(80.8% 0.084 292)
-
Step 400
400
#A390ED
oklch(70.8% 0.134 292)
-
Step 500
500
#8E71E6
oklch(63.1% 0.17 292.2)
-
Step 600
600
#7A56D4
oklch(55.6% 0.185 292.5)
-
Step 700
700
#6745B8
oklch(49.1% 0.173 292.5)
-
Step 800
800 (this color)
#5B429E
oklch(45.5% 0.143 292.3)
-
Step 900
900
#453377
oklch(37.8% 0.112 292.4)
-
Step 950
950
#281E46
oklch(27% 0.072 292.4)
#5B429E 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) | #0B54A1 | 0.091 |
| Deuteranopia (no green cones) | #15519C | 0.087 |
| Tritanopia (no blue cones) | #495669 | 0.116 |
| Achromatopsia (no color) | #535353 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B429E
#5B429E
oklch(45.5% 0.143 292.3)
- #585C00
#585C00
oklch(45.6% 0.101 112.7)
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 #5B429E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.037
- Blueberry #464196 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.047
- Twilight #4E518B ΔE 0.056
- Bluey Purple #6241C7 ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Dusk #4E5481 ΔE 0.075
- Blurple #5539CC ΔE 0.077
Use #5B429E 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.