#6C51EC
Closest named color: Light Indigo (#6D5ACF). oklch(55.5% 0.222 284.5), rgb(108, 81, 236).
Aa
White text reads best on this color (5.21:1).
About this color
#6C51EC is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.222 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.049 away. White text reads best on it, at 5.21:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.222) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #6C51EC |
| RGB | rgb(108, 81, 236) |
| HSL | hsl(250, 80%, 62%) |
| OKLCH | oklch(55.5% 0.222 284.5) |
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 #6C51EC | 5.21:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #6C51EC | 4.02:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #6C51EC text on white | 5.21:1 | AA | Lc 75.3 | Fine for body text |
| #6C51EC text on black | 4.02:1 | AA large text | Lc -26.5 | 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D4D5FD
oklch(88.5% 0.055 284.1)
-
Step 300
300
#B9B8FF
oklch(80.9% 0.1 284.6)
-
Step 400
400
#9790FF
oklch(70.8% 0.159 284.4)
-
Step 500
500
#806FFD
oklch(63.1% 0.203 284.4)
-
Step 600
600 (this color)
#6C51EC
oklch(55.5% 0.222 284.5)
-
Step 700
700
#5B40CE
oklch(49% 0.207 284.5)
-
Step 800
800
#4A37A6
oklch(42.7% 0.17 284.5)
-
Step 900
900
#3D3184
oklch(37.7% 0.133 284.6)
-
Step 950
950
#231E4D
oklch(27% 0.084 284.1)
#6C51EC 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) | #0071F1 | 0.102 |
| Deuteranopia (no green cones) | #0068E9 | 0.097 |
| Tritanopia (no blue cones) | #327898 | 0.184 |
| Achromatopsia (no color) | #6C6C6C | 0.223 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C51EC
#6C51EC
oklch(55.5% 0.222 284.5)
- #7E7600
#7E7600
oklch(55.5% 0.118 104.9)
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 #6C51EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.049
- Purpley #8756E4 ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.052
- Warm Blue #4B57DB ΔE 0.054
- Burple #6832E3 ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.057
- Purpley Blue #5F34E7 ΔE 0.058
Use #6C51EC 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.