#5639AB
Closest named color: Rebecca Purple (#663399). oklch(44.6% 0.173 289.2), rgb(86, 57, 171).
Aa
White text reads best on this color (8.17:1).
About this color
#5639AB is a dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.173 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.043 away. White text reads best on it, at 8.17:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #5639AB |
| RGB | rgb(86, 57, 171) |
| HSL | hsl(255, 50%, 45%) |
| OKLCH | oklch(44.6% 0.173 289.2) |
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 #5639AB | 8.17:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #5639AB | 2.56:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #5639AB text on white | 8.17:1 | AAA | Lc 87.7 | Fine for body text |
| #5639AB text on black | 2.56:1 | Fails | Lc -14.4 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FD
oklch(93.6% 0.03 290)
-
Step 200
200
#D7D4FD
oklch(88.5% 0.056 288.5)
-
Step 300
300
#BEB6FE
oklch(80.9% 0.101 289)
-
Step 400
400
#9F8DFE
oklch(70.8% 0.161 288.9)
-
Step 500
500
#8A6BFB
oklch(63.1% 0.205 289)
-
Step 600
600
#764DEA
oklch(55.6% 0.223 289)
-
Step 700
700
#643CCC
oklch(49.1% 0.208 289.1)
-
Step 800
800 (this color)
#5639AB
oklch(44.6% 0.173 289.2)
-
Step 900
900
#422F83
oklch(37.7% 0.135 288.7)
-
Step 950
950
#271C4C
oklch(26.9% 0.085 290)
#5639AB 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) | #0051AF | 0.092 |
| Deuteranopia (no green cones) | #004CA9 | 0.091 |
| Tritanopia (no blue cones) | #39556D | 0.140 |
| Achromatopsia (no color) | #4F4F4F | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5639AB
#5639AB
oklch(44.6% 0.173 289.2)
- #595800
#595800
oklch(44.7% 0.097 109)
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 #5639AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.043
- Blue With A Hint Of Purple #533CC6 ΔE 0.044
- Blueberry #464196 ΔE 0.046
- Bluey Purple #6241C7 ΔE 0.052
- Blurple #5539CC ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.058
- Majorelle Blue #3F37C9 ΔE 0.062
- Chrysanthemum #560BAD ΔE 0.063
Use #5639AB 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.