#5F55D4
Closest named color: Slate Blue (#6A5ACD). oklch(53.1% 0.188 281.4), rgb(95, 85, 212).
Aa
White text reads best on this color (5.61:1).
About this color
#5F55D4 is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.188 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.025 away. White text reads best on it, at 5.61:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.73:1 |
| White text | 5.61:1 |
Values
| HEX | #5F55D4 |
| RGB | rgb(95, 85, 212) |
| HSL | hsl(245, 60%, 58%) |
| OKLCH | oklch(53.1% 0.188 281.4) |
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 #5F55D4 | 5.61:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #5F55D4 | 3.73:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #5F55D4 text on white | 5.61:1 | AA | Lc 77.7 | Fine for body text |
| #5F55D4 text on black | 3.73:1 | AA large text | Lc -24.1 | 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 600.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D3D6F8
oklch(88.5% 0.047 281.4)
-
Step 300
300
#B7BBF7
oklch(81% 0.085 281.4)
-
Step 400
400
#9395F3
oklch(70.7% 0.136 281.4)
-
Step 500
500
#7B77EE
oklch(63.1% 0.174 281.7)
-
Step 600
600 (this color)
#5F55D4
oklch(53.1% 0.188 281.4)
-
Step 700
700
#554BBF
oklch(49% 0.175 281.7)
-
Step 800
800
#453F9B
oklch(42.8% 0.145 281.3)
-
Step 900
900
#39367B
oklch(37.6% 0.114 281.4)
-
Step 950
950
#212148
oklch(27.1% 0.071 280.6)
#5F55D4 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) | #006CD8 | 0.083 |
| Deuteranopia (no green cones) | #0063D1 | 0.079 |
| Tritanopia (no blue cones) | #26738C | 0.161 |
| Achromatopsia (no color) | #676767 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F55D4
#5F55D4
oklch(53.1% 0.188 281.4)
- #7A6D00
#7A6D00
oklch(53% 0.111 101.1)
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 #5F55D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.025
- Iris #6258C4 ΔE 0.027
- Light Indigo #6D5ACF ΔE 0.027
- Dark Periwinkle #665FD1 ΔE 0.028
- Warm Blue #4B57DB ΔE 0.029
- Bluey Purple #6241C7 ΔE 0.046
- Neon Blue #4361EE ΔE 0.056
- Royal Blue #4169E1 ΔE 0.057
Use #5F55D4 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.