#5F42A4
Closest named color: Rebecca Purple (#663399). oklch(46.3% 0.151 293.2), rgb(95, 66, 164).
Aa
White text reads best on this color (7.49:1).
About this color
#5F42A4 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.151 and its hue 293°. 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 7.49:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #5F42A4 |
| RGB | rgb(95, 66, 164) |
| HSL | hsl(258, 43%, 45%) |
| OKLCH | oklch(46.3% 0.151 293.2) |
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 #5F42A4 | 7.49:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #5F42A4 | 2.80:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #5F42A4 text on white | 7.49:1 | AAA | Lc 85.7 | Fine for body text |
| #5F42A4 text on black | 2.80:1 | Fails | Lc -16.3 | 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 700.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#DAD5F2
oklch(88.6% 0.04 293.5)
-
Step 300
300
#C2B8EC
oklch(80.8% 0.073 293.5)
-
Step 400
400
#A492E3
oklch(70.7% 0.117 293.4)
-
Step 500
500
#8E75DB
oklch(63.1% 0.15 292.9)
-
Step 600
600
#7A5BC8
oklch(55.6% 0.163 293.5)
-
Step 700
700 (this color)
#5F42A4
oklch(46.3% 0.151 293.2)
-
Step 800
800
#533E8C
oklch(42.7% 0.124 292.8)
-
Step 900
900
#453570
oklch(37.7% 0.098 293.6)
-
Step 950
950
#282042
oklch(27.1% 0.062 292.6)
#5F42A4 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) | #0056A7 | 0.100 |
| Deuteranopia (no green cones) | #0E53A2 | 0.095 |
| Tritanopia (no blue cones) | #4C586C | 0.123 |
| Achromatopsia (no color) | #555555 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F42A4
#5F42A4
oklch(46.3% 0.151 293.2)
- #5A5E00
#5A5E00
oklch(46.3% 0.103 112.6)
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 #5F42A4, 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 0.048
- Bluey Purple #6241C7 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Twilight #4E518B ΔE 0.064
- Blurple #5539CC ΔE 0.069
- Iris #6258C4 ΔE 0.070
Use #5F42A4 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.