#6D57C4
Closest named color: Slate Blue (#6A5ACD). oklch(53.5% 0.163 288.9), rgb(109, 87, 196).
Aa
White text reads best on this color (5.51:1).
About this color
#6D57C4 is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.163 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.015 away. White text reads best on it, at 5.51:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.81:1 |
| White text | 5.51:1 |
Values
| HEX | #6D57C4 |
| RGB | rgb(109, 87, 196) |
| HSL | hsl(252, 48%, 55%) |
| OKLCH | oklch(53.5% 0.163 288.9) |
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 #6D57C4 | 5.51:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #6D57C4 | 3.81:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #6D57C4 text on white | 5.51:1 | AA | Lc 77.2 | Fine for body text |
| #6D57C4 text on black | 3.81:1 | AA large text | Lc -24.5 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D8D5F3
oklch(88.5% 0.041 290.1)
-
Step 300
300
#BEB9EE
oklch(80.8% 0.074 288.9)
-
Step 400
400
#9E94E5
oklch(70.7% 0.117 288.7)
-
Step 500
500
#8877DE
oklch(63.1% 0.151 288.9)
-
Step 600
600 (this color)
#6D57C4
oklch(53.5% 0.163 288.9)
-
Step 700
700
#614CB0
oklch(49.1% 0.153 289.2)
-
Step 800
800
#4F3F8E
oklch(42.7% 0.126 289.3)
-
Step 900
900
#413772
oklch(37.8% 0.098 288.6)
-
Step 950
950
#262043
oklch(27% 0.064 289.3)
#6D57C4 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) | #1A6BC8 | 0.094 |
| Deuteranopia (no green cones) | #1D66C2 | 0.091 |
| Tritanopia (no blue cones) | #536F85 | 0.135 |
| Achromatopsia (no color) | #696969 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D57C4
#6D57C4
oklch(53.5% 0.163 288.9)
- #737200
#737200
oklch(53.5% 0.116 109.2)
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 #6D57C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.015
- Iris #6258C4 ΔE 0.017
- Light Indigo #6D5ACF ΔE 0.018
- Dark Periwinkle #665FD1 ΔE 0.027
- Bluey Purple #6241C7 ΔE 0.054
- Warm Blue #4B57DB ΔE 0.061
- Deep Lavender #8D5EB7 ΔE 0.063
- Purpley #8756E4 ΔE 0.065
Use #6D57C4 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.