#6457CD
Closest named color: Slate Blue (#6A5ACD). oklch(53.3% 0.176 283.7), rgb(100, 87, 205).
Aa
White text reads best on this color (5.54:1).
About this color
#6457CD is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.176 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.012 away. White text reads best on it, at 5.54:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #6457CD |
| RGB | rgb(100, 87, 205) |
| HSL | hsl(247, 54%, 57%) |
| OKLCH | oklch(53.3% 0.176 283.7) |
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 #6457CD | 5.54:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #6457CD | 3.78:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #6457CD text on white | 5.54:1 | AA | Lc 77.4 | Fine for body text |
| #6457CD text on black | 3.78:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D5D6F6
oklch(88.5% 0.044 284)
-
Step 300
300
#B9BAF3
oklch(80.8% 0.08 283.7)
-
Step 400
400
#9795ED
oklch(70.7% 0.127 283.7)
-
Step 500
500
#7F78E7
oklch(63.1% 0.162 283.6)
-
Step 600
600 (this color)
#6457CD
oklch(53.3% 0.176 283.7)
-
Step 700
700
#594DB8
oklch(49.2% 0.163 283.7)
-
Step 800
800
#484095
oklch(42.7% 0.135 283.4)
-
Step 900
900
#3C3777
oklch(37.7% 0.106 283.6)
-
Step 950
950
#232146
oklch(27.1% 0.067 283.4)
#6457CD 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) | #006CD1 | 0.088 |
| Deuteranopia (no green cones) | #0064CB | 0.086 |
| Tritanopia (no blue cones) | #3B7289 | 0.149 |
| Achromatopsia (no color) | #686868 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6457CD
#6457CD
oklch(53.3% 0.176 283.7)
- #786F00
#786F00
oklch(53.3% 0.113 103.9)
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 #6457CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.012
- Iris #6258C4 ΔE 0.015
- Light Indigo #6D5ACF ΔE 0.017
- Dark Periwinkle #665FD1 ΔE 0.020
- Warm Blue #4B57DB ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.049
- Royal Blue #4169E1 ΔE 0.062
- Neon Blue #4361EE ΔE 0.066
Use #6457CD 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.