#5731A8
Closest named color: Rebecca Purple (#663399). oklch(43.3% 0.179 291.8), rgb(87, 49, 168).
Aa
White text reads best on this color (8.71:1).
About this color
#5731A8 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.179 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 0.039 away. White text reads best on it, at 8.71:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.41:1 |
| White text | 8.71:1 |
Values
| HEX | #5731A8 |
| RGB | rgb(87, 49, 168) |
| HSL | hsl(259, 55%, 43%) |
| OKLCH | oklch(43.3% 0.179 291.8) |
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 #5731A8 | 8.71:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #5731A8 | 2.41:1 | Fails | Lc 14.8 | Not readable |
| #5731A8 text on white | 8.71:1 | AAA | Lc 89.2 | Fine for body text |
| #5731A8 text on black | 2.41:1 | Fails | Lc -13.0 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FD
oklch(93.7% 0.03 292.1)
-
Step 200
200
#D9D3FD
oklch(88.5% 0.058 291.7)
-
Step 300
300
#C1B5FF
oklch(81% 0.104 291.3)
-
Step 400
400
#A48AFF
oklch(70.7% 0.167 291.8)
-
Step 500
500
#9067FD
oklch(63.1% 0.213 291.7)
-
Step 600
600
#7C47EC
oklch(55.5% 0.232 291.7)
-
Step 700
700
#6936CD
oklch(49% 0.216 291.8)
-
Step 800
800 (this color)
#5731A8
oklch(43.3% 0.179 291.8)
-
Step 900
900
#462C84
oklch(37.7% 0.14 291.9)
-
Step 950
950
#291B4D
oklch(27% 0.088 292.4)
#5731A8 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) | #004DAC | 0.101 |
| Deuteranopia (no green cones) | #0049A6 | 0.099 |
| Tritanopia (no blue cones) | #3D4F69 | 0.141 |
| Achromatopsia (no color) | #4B4B4B | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5731A8
#5731A8
oklch(43.3% 0.179 291.8)
- #525500
#525500
oklch(43.2% 0.096 112.1)
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 #5731A8, closest first.
No curated palette has a color within ΔE 0.04 of #5731A8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.039
- Chrysanthemum #560BAD ΔE 0.048
- Blueberry #464196 ΔE 0.052
- Blue With A Hint Of Purple #533CC6 ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.059
- Blurple #5539CC ΔE 0.060
- Imperial Purple #480CA8 ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.063
Use #5731A8 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.