#5A37B3
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(45.4% 0.185 290), rgb(90, 55, 179).
Aa
White text reads best on this color (7.97:1).
About this color
#5A37B3 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.185 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.034 away. White text reads best on it, at 7.97:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #5A37B3 |
| RGB | rgb(90, 55, 179) |
| HSL | hsl(257, 53%, 46%) |
| OKLCH | oklch(45.4% 0.185 290) |
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 #5A37B3 | 7.97:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #5A37B3 | 2.63:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #5A37B3 text on white | 7.97:1 | AAA | Lc 87.0 | Fine for body text |
| #5A37B3 text on black | 2.63:1 | Fails | Lc -15.1 | 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 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
#D8D3FF
oklch(88.5% 0.06 290.3)
-
Step 300
300
#BFB5FF
oklch(80.8% 0.104 290.1)
-
Step 400
400
#A18BFF
oklch(70.7% 0.166 290.2)
-
Step 500
500
#8C68FF
oklch(63.1% 0.214 289.8)
-
Step 600
600
#7946F2
oklch(55.6% 0.24 289.9)
-
Step 700
700
#6735D3
oklch(49.2% 0.223 290.1)
-
Step 800
800 (this color)
#5A37B3
oklch(45.4% 0.185 290)
-
Step 900
900
#442C87
oklch(37.8% 0.144 289.9)
-
Step 950
950
#271B4F
oklch(27% 0.091 289.5)
#5A37B3 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) | #0053B7 | 0.099 |
| Deuteranopia (no green cones) | #004EB1 | 0.097 |
| Tritanopia (no blue cones) | #3C5671 | 0.147 |
| Achromatopsia (no color) | #515151 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A37B3
#5A37B3
oklch(45.4% 0.185 290)
- #5A5A00
#5A5A00
oklch(45.3% 0.099 109.8)
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 #5A37B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.034
- Bluey Purple #6241C7 ΔE 0.041
- Blurple #5539CC ΔE 0.041
- Rebecca Purple #663399 ΔE 0.049
- Purple Blue #5D21D0 ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.058
- Blueberry #464196 ΔE 0.060
- Chrysanthemum #560BAD ΔE 0.061
Use #5A37B3 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.