#5739A1
Closest named color: Rebecca Purple (#663399). oklch(43.9% 0.16 291.7), rgb(87, 57, 161).
Aa
White text reads best on this color (8.38:1).
About this color
#5739A1 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.160 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 0.033 away. White text reads best on it, at 8.38:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #5739A1 |
| RGB | rgb(87, 57, 161) |
| HSL | hsl(257, 48%, 43%) |
| OKLCH | oklch(43.9% 0.16 291.7) |
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 #5739A1 | 8.38:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #5739A1 | 2.50:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #5739A1 text on white | 8.38:1 | AAA | Lc 88.4 | Fine for body text |
| #5739A1 text on black | 2.50:1 | Fails | Lc -13.7 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#D9D4F9
oklch(88.6% 0.051 291.5)
-
Step 300
300
#C1B6F9
oklch(80.9% 0.094 291.7)
-
Step 400
400
#A38DF5
oklch(70.6% 0.149 291.8)
-
Step 500
500
#8E6DF1
oklch(63.1% 0.19 291.5)
-
Step 600
600
#7A50E0
oklch(55.6% 0.208 291.6)
-
Step 700
700
#673FC2
oklch(49% 0.193 291.7)
-
Step 800
800 (this color)
#5739A1
oklch(43.9% 0.16 291.7)
-
Step 900
900
#45307D
oklch(37.7% 0.125 291.9)
-
Step 950
950
#281D49
oklch(27% 0.079 291.8)
#5739A1 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) | #004FA4 | 0.095 |
| Deuteranopia (no green cones) | #004B9F | 0.094 |
| Tritanopia (no blue cones) | #415168 | 0.127 |
| Achromatopsia (no color) | #4E4E4E | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5739A1
#5739A1
oklch(43.9% 0.16 291.7)
- #545700
#545700
oklch(43.9% 0.097 112.1)
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 #5739A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.033
- Blueberry #464196 ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.045
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.066
- Chrysanthemum #560BAD ΔE 0.066
- Blurple #5539CC ΔE 0.069
- Twilight #4E518B ΔE 0.074
Use #5739A1 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.