#6D51D4
Closest named color: Light Indigo (#6D5ACF). oklch(53.6% 0.192 288), rgb(109, 81, 212).
Aa
White text reads best on this color (5.55:1).
About this color
#6D51D4 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.192 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.022 away. White text reads best on it, at 5.55:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.77:1 |
| White text | 5.55:1 |
Values
| HEX | #6D51D4 |
| RGB | rgb(109, 81, 212) |
| HSL | hsl(253, 60%, 57%) |
| OKLCH | oklch(53.6% 0.192 288) |
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 #6D51D4 | 5.55:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #6D51D4 | 3.77:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #6D51D4 text on white | 5.55:1 | AA | Lc 77.3 | Fine for body text |
| #6D51D4 text on black | 3.77:1 | AA large text | Lc -24.4 | 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
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D7D5F8
oklch(88.6% 0.048 288)
-
Step 300
300
#BDB8F6
oklch(80.8% 0.087 288)
-
Step 400
400
#9D91F1
oklch(70.7% 0.138 288.1)
-
Step 500
500
#8772EC
oklch(63% 0.177 288.2)
-
Step 600
600 (this color)
#6D51D4
oklch(53.6% 0.192 288)
-
Step 700
700
#6046BE
oklch(49.1% 0.179 287.9)
-
Step 800
800
#4E3B99
oklch(42.7% 0.147 287.8)
-
Step 900
900
#40347A
oklch(37.7% 0.115 287.5)
-
Step 950
950
#251F47
oklch(26.9% 0.072 287.4)
#6D51D4 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) | #006BD8 | 0.104 |
| Deuteranopia (no green cones) | #0065D1 | 0.102 |
| Tritanopia (no blue cones) | #4A708B | 0.158 |
| Achromatopsia (no color) | #686868 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D51D4
#6D51D4
oklch(53.6% 0.192 288)
- #757200
#757200
oklch(53.7% 0.116 107.9)
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 #6D51D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.022
- Slate Blue #6A5ACD ΔE 0.023
- Dark Periwinkle #665FD1 ΔE 0.033
- Iris #6258C4 ΔE 0.034
- Bluey Purple #6241C7 ΔE 0.045
- Warm Blue #4B57DB ΔE 0.051
- Purpley #8756E4 ΔE 0.052
- Burple #6832E3 ΔE 0.061
Use #6D51D4 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.