#5B37DC
Closest named color: Purpley Blue (#5F34E7). oklch(49.2% 0.232 283.8), rgb(91, 55, 220).
Aa
White text reads best on this color (6.94:1).
About this color
#5B37DC is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.232 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Purpley Blue (#5F34E7), ΔE 0.018 away. White text reads best on it, at 6.94:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.232) |
| Temperature | cool |
| Nearest name | Purpley Blue (#5F34E7) |
| Black text | 3.02:1 |
| White text | 6.94:1 |
Values
| HEX | #5B37DC |
| RGB | rgb(91, 55, 220) |
| HSL | hsl(253, 70%, 54%) |
| OKLCH | oklch(49.2% 0.232 283.8) |
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 #5B37DC | 6.94:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #5B37DC | 3.02:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #5B37DC text on white | 6.94:1 | AA | Lc 83.0 | Fine for body text |
| #5B37DC text on black | 3.02:1 | AA large text | Lc -18.9 | 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 700.
-
Step 50
50
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FF
oklch(93.7% 0.031 283.8)
-
Step 200
200
#D4D5FF
oklch(88.6% 0.058 284.1)
-
Step 300
300
#B8B8FF
oklch(80.8% 0.1 283.9)
-
Step 400
400
#9690FF
oklch(70.7% 0.159 284)
-
Step 500
500
#7F6FFF
oklch(63.1% 0.206 283.8)
-
Step 600
600
#6C48FC
oklch(55.6% 0.25 283.9)
-
Step 700
700 (this color)
#5B37DC
oklch(49.2% 0.232 283.8)
-
Step 800
800
#4A30B2
oklch(42.8% 0.193 283.9)
-
Step 900
900
#3C2D8C
oklch(37.6% 0.15 283.7)
-
Step 950
950
#231C52
oklch(27% 0.095 284)
#5B37DC 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) | #005EE1 | 0.099 |
| Deuteranopia (no green cones) | #0054D9 | 0.090 |
| Tritanopia (no blue cones) | #026688 | 0.193 |
| Achromatopsia (no color) | #5A5A5A | 0.234 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B37DC
#5B37DC
oklch(49.2% 0.232 283.8)
- #6B6300
#6B6300
oklch(49.2% 0.104 104)
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 #5B37DC, closest first.
No curated palette has a color within ΔE 0.04 of #5B37DC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purpley Blue #5F34E7 ΔE 0.018
- Burple #6832E3 ΔE 0.025
- Blurple #5539CC ΔE 0.026
- Blue With A Hint Of Purple #533CC6 ΔE 0.036
- Purple Blue #5D21D0 ΔE 0.037
- Bluey Purple #6241C7 ΔE 0.039
- Purply Blue #661AEE ΔE 0.041
- Blue Purple #5A06EF ΔE 0.049
Use #5B37DC 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.