#6B57D7
Closest named color: Light Indigo (#6D5ACF). oklch(54.7% 0.188 285.5), rgb(107, 87, 215).
Aa
White text reads best on this color (5.29:1).
About this color
#6B57D7 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.188 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.015 away. White text reads best on it, at 5.29:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #6B57D7 |
| RGB | rgb(107, 87, 215) |
| HSL | hsl(249, 62%, 59%) |
| OKLCH | oklch(54.7% 0.188 285.5) |
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 #6B57D7 | 5.29:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #6B57D7 | 3.96:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #6B57D7 text on white | 5.29:1 | AA | Lc 75.9 | Fine for body text |
| #6B57D7 text on black | 3.96:1 | AA large text | Lc -25.8 | 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
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D5D5F8
oklch(88.4% 0.048 285.4)
-
Step 300
300
#BBB9F6
oklch(80.9% 0.086 285.8)
-
Step 400
400
#9993F1
oklch(70.7% 0.135 285.3)
-
Step 500
500
#8275EC
oklch(63.1% 0.173 285.3)
-
Step 600
600 (this color)
#6B57D7
oklch(54.7% 0.188 285.5)
-
Step 700
700
#5C49BD
oklch(49.1% 0.174 285.5)
-
Step 800
800
#4B3D99
oklch(42.8% 0.144 285.5)
-
Step 900
900
#3E357A
oklch(37.7% 0.113 285.6)
-
Step 950
950
#242047
oklch(27.1% 0.07 285.3)
#6B57D7 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) | #006FDB | 0.097 |
| Deuteranopia (no green cones) | #0068D4 | 0.095 |
| Tritanopia (no blue cones) | #43758F | 0.157 |
| Achromatopsia (no color) | #6B6B6B | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B57D7
#6B57D7
oklch(54.7% 0.188 285.5)
- #7B7400
#7B7400
oklch(54.8% 0.116 105.4)
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 #6B57D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.015
- Slate Blue #6A5ACD ΔE 0.017
- Dark Periwinkle #665FD1 ΔE 0.022
- Iris #6258C4 ΔE 0.033
- Warm Blue #4B57DB ΔE 0.047
- Purpley #8756E4 ΔE 0.050
- Bluey Purple #6241C7 ΔE 0.056
- Medium Slate Blue #7B68EE ΔE 0.058
Use #6B57D7 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.