#5731AC
Closest named color: Rebecca Purple (#663399). oklch(43.6% 0.184 291), rgb(87, 49, 172).
Aa
White text reads best on this color (8.60:1).
About this color
#5731AC is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.184 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.044 away. White text reads best on it, at 8.60:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.44:1 |
| White text | 8.60:1 |
Values
| HEX | #5731AC |
| RGB | rgb(87, 49, 172) |
| HSL | hsl(259, 56%, 43%) |
| OKLCH | oklch(43.6% 0.184 291) |
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 #5731AC | 8.60:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #5731AC | 2.44:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #5731AC text on white | 8.60:1 | AAA | Lc 88.8 | Fine for body text |
| #5731AC text on black | 2.44:1 | Fails | Lc -13.4 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FE
oklch(93.6% 0.031 289.8)
-
Step 200
200
#D8D3FE
oklch(88.5% 0.059 290.5)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A28BFF
oklch(70.7% 0.166 290.7)
-
Step 500
500
#8F67FF
oklch(63.2% 0.216 291.1)
-
Step 600
600
#7B45F0
oklch(55.5% 0.239 291)
-
Step 700
700
#6835D1
oklch(49.1% 0.221 290.8)
-
Step 800
800 (this color)
#5731AC
oklch(43.6% 0.184 291)
-
Step 900
900
#452C86
oklch(37.8% 0.143 290.7)
-
Step 950
950
#281B4E
oklch(27% 0.09 290.9)
#5731AC 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) | #004EB0 | 0.100 |
| Deuteranopia (no green cones) | #0049AA | 0.098 |
| Tritanopia (no blue cones) | #3B516B | 0.147 |
| Achromatopsia (no color) | #4C4C4C | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5731AC
#5731AC
oklch(43.6% 0.184 291)
- #545600
#545600
oklch(43.7% 0.096 111.3)
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 #5731AC, closest first.
No curated palette has a color within ΔE 0.04 of #5731AC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.044
- Chrysanthemum #560BAD ΔE 0.047
- Blue With A Hint Of Purple #533CC6 ΔE 0.048
- Blurple #5539CC ΔE 0.054
- Blueberry #464196 ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.058
- Purple Blue #5D21D0 ΔE 0.059
- Imperial Purple #480CA8 ΔE 0.061
Use #5731AC 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.