#5F55D9
Closest named color: Warm Blue (#4B57DB). oklch(53.5% 0.195 280.9), rgb(95, 85, 217).
Aa
White text reads best on this color (5.54:1).
About this color
#5F55D9 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.195 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.028 away. White text reads best on it, at 5.54:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #5F55D9 |
| RGB | rgb(95, 85, 217) |
| HSL | hsl(245, 63%, 59%) |
| OKLCH | oklch(53.5% 0.195 280.9) |
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 #5F55D9 | 5.54:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #5F55D9 | 3.78:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #5F55D9 text on white | 5.54:1 | AA | Lc 77.2 | Fine for body text |
| #5F55D9 text on black | 3.78:1 | AA large text | Lc -24.5 | 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 600.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D3D6F9
oklch(88.5% 0.048 281.5)
-
Step 300
300
#B6BBF9
oklch(81% 0.088 280.7)
-
Step 400
400
#9295F6
oklch(70.8% 0.14 280.8)
-
Step 500
500
#7977F2
oklch(63.2% 0.179 280.7)
-
Step 600
600 (this color)
#5F55D9
oklch(53.5% 0.195 280.9)
-
Step 700
700
#544AC3
oklch(49.1% 0.182 281.1)
-
Step 800
800
#443E9D
oklch(42.7% 0.149 280.8)
-
Step 900
900
#39367D
oklch(37.7% 0.117 281.1)
-
Step 950
950
#212049
oklch(26.9% 0.074 281.3)
#5F55D9 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) | #006DDD | 0.083 |
| Deuteranopia (no green cones) | #0063D6 | 0.078 |
| Tritanopia (no blue cones) | #1E758F | 0.167 |
| Achromatopsia (no color) | #686868 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F55D9
#5F55D9
oklch(53.5% 0.195 280.9)
- #7C6E00
#7C6E00
oklch(53.5% 0.111 100.5)
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 #5F55D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.028
- Slate Blue #6A5ACD ΔE 0.029
- Dark Periwinkle #665FD1 ΔE 0.030
- Light Indigo #6D5ACF ΔE 0.031
- Iris #6258C4 ΔE 0.034
- Bluey Purple #6241C7 ΔE 0.050
- Neon Blue #4361EE ΔE 0.051
- Royal Blue #4169E1 ΔE 0.055
Use #5F55D9 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.