#6F51DA
Closest named color: Light Indigo (#6D5ACF). oklch(54.3% 0.199 287.9), rgb(111, 81, 218).
Aa
White text reads best on this color (5.43:1).
About this color
#6F51DA is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.199 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.027 away. White text reads best on it, at 5.43:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.199) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #6F51DA |
| RGB | rgb(111, 81, 218) |
| HSL | hsl(253, 65%, 59%) |
| OKLCH | oklch(54.3% 0.199 287.9) |
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 #6F51DA | 5.43:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #6F51DA | 3.86:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #6F51DA text on white | 5.43:1 | AA | Lc 76.6 | Fine for body text |
| #6F51DA text on black | 3.86:1 | AA large text | Lc -25.1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E8E8FB
oklch(93.7% 0.026 285.9)
-
Step 200
200
#D7D5F9
oklch(88.6% 0.049 287.9)
-
Step 300
300
#BDB8F8
oklch(80.9% 0.09 287.8)
-
Step 400
400
#9D90F4
oklch(70.6% 0.144 288.1)
-
Step 500
500
#8771F0
oklch(63.1% 0.183 287.9)
-
Step 600
600 (this color)
#6F51DA
oklch(54.3% 0.199 287.9)
-
Step 700
700
#6044C1
oklch(49% 0.186 287.8)
-
Step 800
800
#4E399C
oklch(42.6% 0.154 287.8)
-
Step 900
900
#41337C
oklch(37.8% 0.119 288.2)
-
Step 950
950
#261E49
oklch(27% 0.077 288.7)
#6F51DA 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) | #006DDE | 0.106 |
| Deuteranopia (no green cones) | #0066D7 | 0.104 |
| Tritanopia (no blue cones) | #4A728E | 0.164 |
| Achromatopsia (no color) | #6A6A6A | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6F51DA
#6F51DA
oklch(54.3% 0.199 287.9)
- #777400
#777400
oklch(54.4% 0.117 107.9)
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 #6F51DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.027
- Slate Blue #6A5ACD ΔE 0.029
- Dark Periwinkle #665FD1 ΔE 0.036
- Iris #6258C4 ΔE 0.042
- Purpley #8756E4 ΔE 0.045
- Bluey Purple #6241C7 ΔE 0.051
- Warm Blue #4B57DB ΔE 0.053
- Burple #6832E3 ΔE 0.058
Use #6F51DA 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.